72116418 has 32 divisors (see below), whose sum is σ = 161010432. Its totient is φ = 21344400.

The previous prime is 72116399. The next prime is 72116423. The reversal of 72116418 is 81461127.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9868 + ... + 15543.

It is an arithmetic number, because the mean of its divisors is an integer number (5031576).

Almost surely, 2^72116418 is an apocalyptic number.

72116418 is an abundant number, since it is smaller than the sum of its proper divisors (88894014).

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

72116418 is a wasteful number, since it uses less digits than its factorization.

72116418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25470.

The product of its digits is 2688, while the sum is 30.

The square root of 72116418 is about 8492.1385999052. The cubic root of 72116418 is about 416.2408653498.

The spelling of 72116418 in words is "seventy-two million, one hundred sixteen thousand, four hundred eighteen".