The answer depends on where and also on what you mean by "bugs". To some bugs mean insects, to others it means all land-based arthropods. Please decide what you want and resubmit the question using unambiguous terms.
If the question was "0.45 acres equals how many square feet the answer would be: 0.45 acre = 19 602 square feet If the question was "45 acres equals how many square feet the answer would be: 45 acre = 1 960 200 square feet
As one square mile = 640 acre's 40 000 square mile = 25 600 000 acre's Found using http://www.onlineconversion.com/area.htm
Per capita.
you have about 900 steps in a mile
1 acre = 4840 sq yd = 9 x 4840 = 43560 sq ft. 25000 sq ft = 25000 ÷ 43560 = 0.574 acres (3 dp)
There are 2.6 square km in a square mile.
There are approximately 0.93 square miles in 2.4 square kilometers.
One square mile = 3,098,000 square yards.
1 square mile=2,589,988.1 square meters
Answer: 1 square mile = 3,097,600 square yards.
There are 2,589,988.11 square meters in 1 square mile
1 square mile = 27,878,400 square feet.
1 acre = 0.0015625 square mile 1 square mile = 640 acres
1 square mile is 27,878,400 square feet.
One square mile equates to about 2.6 square km
A square mile is equal to 27,878,400 square inches.
One square mile is equal to 3,097,600 square yards