72539004 has 48 divisors (see below), whose sum is σ = 176301216. Its totient is φ = 23193600.

The previous prime is 72539003. The next prime is 72539053. The reversal of 72539004 is 40093527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72539003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28804 + ... + 31220.

It is an arithmetic number, because the mean of its divisors is an integer number (3672942).

Almost surely, 2^72539004 is an apocalyptic number.

It is an amenable number.

72539004 is an abundant number, since it is smaller than the sum of its proper divisors (103762212).

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

72539004 is a wasteful number, since it uses less digits than its factorization.

72539004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 72539004 is about 8516.9832687402. The cubic root of 72539004 is about 417.0523084207.

The spelling of 72539004 in words is "seventy-two million, five hundred thirty-nine thousand, four".