72510988 has 12 divisors (see below), whose sum is σ = 138430152. Its totient is φ = 32959520.

The previous prime is 72510959. The next prime is 72511003. The reversal of 72510988 is 88901527.

It is a super-2 number, since 2×72510988² = 10515686761472288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72510988.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 823945 + ... + 824032.

It is an arithmetic number, because the mean of its divisors is an integer number (11535846).

Almost surely, 2^72510988 is an apocalyptic number.

It is an amenable number.

72510988 is a deficient number, since it is larger than the sum of its proper divisors (65919164).

72510988 is a wasteful number, since it uses less digits than its factorization.

72510988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647992 (or 1647990 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 72510988 is about 8515.3383960944. The cubic root of 72510988 is about 416.9986102199.

The spelling of 72510988 in words is "seventy-two million, five hundred ten thousand, nine hundred eighty-eight".