72160764 has 24 divisors (see below), whose sum is σ = 181327440. Its totient is φ = 22203264.

The previous prime is 72160747. The next prime is 72160769. The reversal of 72160764 is 46706127.

It is a super-2 number, since 2×72160764² = 10414351722127392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72160769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231129 + ... + 231440.

It is an arithmetic number, because the mean of its divisors is an integer number (7555310).

Almost surely, 2^72160764 is an apocalyptic number.

It is an amenable number.

72160764 is an abundant number, since it is smaller than the sum of its proper divisors (109166676).

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

72160764 is a wasteful number, since it uses less digits than its factorization.

72160764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462589 (or 462587 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 72160764 is about 8494.7492017128. The cubic root of 72160764 is about 416.3261664767.

The spelling of 72160764 in words is "seventy-two million, one hundred sixty thousand, seven hundred sixty-four".