9040904 has 32 divisors (see below), whose sum is σ = 17462520. Its totient is φ = 4386816.

The previous prime is 9040897. The next prime is 9040907. The reversal of 9040904 is 4090409.

It can be written as a sum of positive squares in 4 ways, for example, as 5808100 + 3232804 = 2410^2 + 1798^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65924 + ... + 66060.

Almost surely, 2^9040904 is an apocalyptic number.

It is an amenable number.

9040904 is a deficient number, since it is larger than the sum of its proper divisors (8421616).

9040904 is a wasteful number, since it uses less digits than its factorization.

9040904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9040904 is about 3006.8096048802. The cubic root of 9040904 is about 208.3230310994.

The spelling of 9040904 in words is "nine million, forty thousand, nine hundred four".