72108304 has 20 divisors (see below), whose sum is σ = 140425164. Its totient is φ = 35869568.

The previous prime is 72108259. The next prime is 72108313. The reversal of 72108304 is 40380127.

It can be written as a sum of positive squares in 2 ways, for example, as 67897600 + 4210704 = 8240^2 + 2052^2 .

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, 8287 + ... + 14590.

Almost surely, 2^72108304 is an apocalyptic number.

It is an amenable number.

72108304 is a deficient number, since it is larger than the sum of its proper divisors (68316860).

72108304 is a wasteful number, since it uses less digits than its factorization.

72108304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23082 (or 23076 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 72108304 is about 8491.6608505050. The cubic root of 72108304 is about 416.2252539946.

The spelling of 72108304 in words is "seventy-two million, one hundred eight thousand, three hundred four".