72088912 has 20 divisors (see below), whose sum is σ = 159625696. Its totient is φ = 30895200.

The previous prime is 72088909. The next prime is 72088931. The reversal of 72088912 is 21988027.

It is a super-2 number, since 2×72088912² = 10393622466687488, 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 3 ways as a sum of consecutive naturals, for example, 321714 + ... + 321937.

Almost surely, 2^72088912 is an apocalyptic number.

It is an amenable number.

72088912 is an abundant number, since it is smaller than the sum of its proper divisors (87536784).

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

72088912 is a wasteful number, since it uses less digits than its factorization.

72088912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643666 (or 643660 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 72088912 is about 8490.5189476262. The cubic root of 72088912 is about 416.1879389960.

The spelling of 72088912 in words is "seventy-two million, eighty-eight thousand, nine hundred twelve".