72915288 has 32 divisors (see below), whose sum is σ = 184173360. Its totient is φ = 24053760.

The previous prime is 72915277. The next prime is 72915289. The reversal of 72915288 is 88251927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72915289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13333 + ... + 17988.

Almost surely, 2^72915288 is an apocalyptic number.

It is an amenable number.

72915288 is an abundant number, since it is smaller than the sum of its proper divisors (111258072).

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

72915288 is a wasteful number, since it uses less digits than its factorization.

72915288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31427 (or 31423 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 72915288 is about 8539.0449114640. The cubic root of 72915288 is about 417.7721948812.

The spelling of 72915288 in words is "seventy-two million, nine hundred fifteen thousand, two hundred eighty-eight".