400 in words
British English
four hundred
Quick reference
- In figures
- 400
- British English
- four hundred
- American English
- The same (why they differ)
- Ordinal
- four hundredth (400th)
- Roman numeral
- CD
- Place value
- 4 in the hundreds column
- Expanded form
- 400
- Standard form
- 4 × 10²
- Even or odd
- Even
- Prime factors
- 2⁴ × 5²
Convert any other number, up to thirty-six digits.