904403028 has 12 divisors (see below), whose sum is σ = 2110273760. Its totient is φ = 301467672.

The previous prime is 904403023. The next prime is 904403057. The reversal of 904403028 is 820304409.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 904402986 and 904403004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904403023) by changing a digit.

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, 37683448 + ... + 37683471.

Almost surely, 2^904403028 is an apocalyptic number.

It is an amenable number.

904403028 is an abundant number, since it is smaller than the sum of its proper divisors (1205870732).

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

904403028 is a wasteful number, since it uses less digits than its factorization.

904403028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75366926 (or 75366924 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 904403028 is about 30073.2942658432. The cubic root of 904403028 is about 967.0612968747.

The spelling of 904403028 in words is "nine hundred four million, four hundred three thousand, twenty-eight".