620 in words

620 is written "six hundred twenty". British English inserts "and" before the final part, giving "six hundred and twenty"; American English leaves it out.

Where each word comes from

The same number, other ways

In words (US)

Six hundred twenty

In words (UK)

Six hundred and twenty

Ordinal

620th — six hundred twentieth

Roman numeral

DCXX

Digits

620

Writing it on a cheque

On a cheque the amount line reads "Six hundred and twenty and 00/100" — or "Six hundred and twenty only" in Indian and much of Commonwealth practice. The fraction or the word "only" exists to stop anyone appending digits after what you wrote. Draw a line through any space left over for the same reason.