904940 has 12 divisors (see below), whose sum is σ = 1900416. Its totient is φ = 361968.

The previous prime is 904933. The next prime is 904987. The reversal of 904940 is 49409.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22604 + ... + 22643.

It is an arithmetic number, because the mean of its divisors is an integer number (158368).

2⁹⁰⁴⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

904940 is an abundant number, since it is smaller than the sum of its proper divisors (995476).

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

904940 is a wasteful number, since it uses less digits than its factorization.

904940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45256 (or 45254 counting only the distinct ones).

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

The square root of 904940 is about 951.2833436994. The cubic root of 904940 is about 96.7252650392.

The spelling of 904940 in words is "nine hundred four thousand, nine hundred forty".