4,009 in words
4,009
four thousand and nine
4,009 is written four thousand and nine.
Ways to write it
- As an ordinal
- four thousand and ninth
- Expanded form
- 4,000 + 9
Place value
| Place | Digit | Value |
|---|---|---|
| thousands | 4 | 4,000 |
| hundreds | 0 | 0 |
| tens | 0 | 0 |
| ones | 9 | 9 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 19, 211 and 4,009 (4 factors)
- First 10 multiples
- 4,009, 8,018, 12,027, 16,036, 20,045, 24,054, 28,063, 32,072, 36,081, 40,090
- Square
- 4,009 × 4,009 = 16,072,081
- Square root
- ≈ 63.32
- Sum of the digits
- 4 + 0 + 0 + 9 = 13
- Rounded to the nearest 10
- 4,010
- Rounded to the nearest 100
- 4,000
- Rounded to the nearest 1000
- 4,000
- Number before
- 4,008
- Number after
- 4,010
- In binary
111110101001
Quick check
What number comes just after 4,009?
Show the answer
4,010
Is 4,009 even or odd?
Show the answer
Odd
What is 4,009 + 10?
Show the answer
4,019
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 4,009 in words?
4,009 is written "four thousand and nine".
Is 4,009 a prime number?
No. 4,009 is a composite number, because it has more than two factors.
What are the factors of 4,009?
The factors of 4,009 are 1, 19, 211 and 4,009.