72188796 has 12 divisors (see below), whose sum is σ = 168440552. Its totient is φ = 24062928.

The previous prime is 72188777. The next prime is 72188819. The reversal of 72188796 is 69788127.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×72188796² = 10422444535859232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3007855 + ... + 3007878.

Almost surely, 2^72188796 is an apocalyptic number.

It is an amenable number.

72188796 is an abundant number, since it is smaller than the sum of its proper divisors (96251756).

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

72188796 is a wasteful number, since it uses less digits than its factorization.

72188796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015740 (or 6015738 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The square root of 72188796 is about 8496.3990019302. The cubic root of 72188796 is about 416.3800690113.

The spelling of 72188796 in words is "seventy-two million, one hundred eighty-eight thousand, seven hundred ninety-six".