90732304 has 40 divisors (see below), whose sum is σ = 189909720. Its totient is φ = 41745408.

The previous prime is 90732293. The next prime is 90732311. The reversal of 90732304 is 40323709.

It can be written as a sum of positive squares in 4 ways, for example, as 30824704 + 59907600 = 5552^2 + 7740^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105444 + ... + 106300.

It is an arithmetic number, because the mean of its divisors is an integer number (4747743).

Almost surely, 2^90732304 is an apocalyptic number.

It is an amenable number.

90732304 is an abundant number, since it is smaller than the sum of its proper divisors (99177416).

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

90732304 is a wasteful number, since it uses less digits than its factorization.

90732304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 90732304 is about 9525.3505972221. The cubic root of 90732304 is about 449.3526560463.

The spelling of 90732304 in words is "ninety million, seven hundred thirty-two thousand, three hundred four".