904745090 has 32 divisors (see below), whose sum is σ = 1675704240. Its totient is φ = 351454464.

The previous prime is 904745087. The next prime is 904745141. The reversal of 904745090 is 90547409.

It can be written as a sum of positive squares in 8 ways, for example, as 258212761 + 646532329 = 16069^2 + 25427^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224816 + ... + 228804.

Almost surely, 2^904745090 is an apocalyptic number.

904745090 is a deficient number, since it is larger than the sum of its proper divisors (770959150).

904745090 is a wasteful number, since it uses less digits than its factorization.

904745090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 904745090 is about 30078.9808670440. The cubic root of 904745090 is about 967.1832016803.

The spelling of 904745090 in words is "nine hundred four million, seven hundred forty-five thousand, ninety".