904398120 has 48 divisors (see below), whose sum is σ = 2939295060. Its totient is φ = 241172736.

The previous prime is 904398109. The next prime is 904398127. The reversal of 904398120 is 21893409.

It can be written as a sum of positive squares in 2 ways, for example, as 833938884 + 70459236 = 28878^2 + 8394^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (904398127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255749 + ... + 1256468.

Almost surely, 2^904398120 is an apocalyptic number.

904398120 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

904398120 is an abundant number, since it is smaller than the sum of its proper divisors (2034896940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

904398120 is a wasteful number, since it uses less digits than its factorization.

904398120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512234 (or 2512227 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 904398120 is about 30073.2126650945. The cubic root of 904398120 is about 967.0595475272.

The spelling of 904398120 in words is "nine hundred four million, three hundred ninety-eight thousand, one hundred twenty".