72814732 has 12 divisors (see below), whose sum is σ = 129585960. Its totient is φ = 35790176.

The previous prime is 72814681. The next prime is 72814747. The reversal of 72814732 is 23741827.

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, 154033 + ... + 154504.

It is an arithmetic number, because the mean of its divisors is an integer number (10798830).

Almost surely, 2^72814732 is an apocalyptic number.

It is an amenable number.

72814732 is a deficient number, since it is larger than the sum of its proper divisors (56771228).

72814732 is a wasteful number, since it uses less digits than its factorization.

72814732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308600 (or 308598 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 72814732 is about 8533.1548679255. The cubic root of 72814732 is about 417.5800594673.

The spelling of 72814732 in words is "seventy-two million, eight hundred fourteen thousand, seven hundred thirty-two".