4492409 has 2 divisors, whose sum is σ = 4492410. Its totient is φ = 4492408.

The previous prime is 4492399. The next prime is 4492421. The reversal of 4492409 is 9042944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 2166784 = 1525^2 + 1472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4492409 is a prime.

It is not a weakly prime, because it can be changed into another prime (4492459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246204 + 2246205.

It is an arithmetic number, because the mean of its divisors is an integer number (2246205).

Almost surely, 2^4492409 is an apocalyptic number.

It is an amenable number.

4492409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4492409 is an equidigital number, since it uses as much as digits as its factorization.

4492409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 4492409 is about 2119.5303725118. The cubic root of 4492409 is about 165.0034771229.

The spelling of 4492409 in words is "four million, four hundred ninety-two thousand, four hundred nine".