the author of this app says:
Num-Num gives you the capability to learn numbers in various languages easily. The languages that are included are English, French, German, Spanish, Italian and Dutch.
If you have always wanted to start learning a new language, this is the ideal application to start with. Enter a number (numeric) and tap on "convert" to show you how it should be spelled and written in one of four ways: cardinal, money, year or ordinal.
Num-Num is very helpful if you have trouble writing out dollar amounts on your checks.