904517228 has 12 divisors (see below), whose sum is σ = 1651727280. Its totient is φ = 432595152.

The previous prime is 904517183. The next prime is 904517233. The reversal of 904517228 is 822715409.

It is a junction number, because it is equal to n+sod(n) for n = 904517191 and 904517200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4915763 + ... + 4915946.

It is an arithmetic number, because the mean of its divisors is an integer number (137643940).

Almost surely, 2^904517228 is an apocalyptic number.

It is an amenable number.

904517228 is a deficient number, since it is larger than the sum of its proper divisors (747210052).

904517228 is a wasteful number, since it uses less digits than its factorization.

904517228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831736 (or 9831734 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 904517228 is about 30075.1929004620. The cubic root of 904517228 is about 967.1019991386.

It can be divided in two parts, 90451 and 7228, that added together give a palindrome (97679).

The spelling of 904517228 in words is "nine hundred four million, five hundred seventeen thousand, two hundred twenty-eight".