72504404 has 12 divisors (see below), whose sum is σ = 145008864. Its totient is φ = 31073304.

The previous prime is 72504391. The next prime is 72504431. The reversal of 72504404 is 40440527.

72504404 is an admirable number.

It is a congruent number.

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, 1294694 + ... + 1294749.

It is an arithmetic number, because the mean of its divisors is an integer number (12084072).

Almost surely, 2^72504404 is an apocalyptic number.

It is an amenable number.

72504404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72504404 is a wasteful number, since it uses less digits than its factorization.

72504404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589454 (or 2589452 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 72504404 is about 8514.9517908207. The cubic root of 72504404 is about 416.9859886756.

The spelling of 72504404 in words is "seventy-two million, five hundred four thousand, four hundred four".