Wyoming and Colorado are closest in size to Ecuador.
The closest you can get to a 39.5 would be a European size 40, which is a a size 9 American Shoe Size.
Venezuela is the most closest to the size of Niger Africa
Colorado is closest in size to Ecuador, just about 2,000 km2 smaller.
Sweden is closest in size to Uzbekistan.
Bulgaria is the closest size to Tennessee.
Somalia is closest to size as that of France.
Iraq is the country closest to being 430,000 km2
The closest country to this size is Russia, with a total area of 16,377,742 sq. miles.
The country whose area is closest to that size is Samoa (1097 square miles).
When you compare it's square kilometers, the closest country in terms of land area; Belarus is roughly the size of Minnesota
The country closest to size to Kazakhstan is Argentina, who is only about 55,000 km2 larger than Kazakhstan. The state closest in size to Kazakhstan is Alaska, although Kazakhstan is a little more than 1,000,000 km2 larger than Alaska.