"Forty-two" is "cuarenta y dos" in Spanish.
cuarenta y dos
Cuarenta
qua-REN-ta
Cuarenta y dos (kwa-REN-tah ee dos)
cuatrocientos veinte
Cuarenta
Cuarenta
quinientos cuarenta
cuarenta y uno (or -a if it feminine)
Two thousand forty-two.
Zweiundvierzig
nineteen-forty-two.
You spell it like "two hundred forty nine".
Forty two thousand is "quarante deux mille" in French.
The number 42 is spelled forty-two (hyphenated because it is usually an adjective).
The number 4742 is spelled "four thousand forty-two." (for addresses, it may be spoken as "forty-seven forty-two.")
two hundred and forty eight.