72159416 has 32 divisors (see below), whose sum is σ = 162768000. Its totient is φ = 29297376.

The previous prime is 72159391. The next prime is 72159443. The reversal of 72159416 is 61495127.

It is a super-2 number, since 2×72159416² = 10413962634922112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32846 + ... + 34973.

It is an arithmetic number, because the mean of its divisors is an integer number (5086500).

Almost surely, 2^72159416 is an apocalyptic number.

72159416 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72159416 is an abundant number, since it is smaller than the sum of its proper divisors (90608584).

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

72159416 is a wasteful number, since it uses less digits than its factorization.

72159416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67851 (or 67847 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 72159416 is about 8494.6698582111. The cubic root of 72159416 is about 416.3235740652.

The spelling of 72159416 in words is "seventy-two million, one hundred fifty-nine thousand, four hundred sixteen".