72352732 has 12 divisors (see below), whose sum is σ = 126752976. Its totient is φ = 36137600.

The previous prime is 72352699. The next prime is 72352751. The reversal of 72352732 is 23725327.

It is a junction number, because it is equal to n+sod(n) for n = 72352694 and 72352703.

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, 5269 + ... + 13132.

It is an arithmetic number, because the mean of its divisors is an integer number (10562748).

Almost surely, 2^72352732 is an apocalyptic number.

It is an amenable number.

72352732 is a deficient number, since it is larger than the sum of its proper divisors (54400244).

72352732 is a wasteful number, since it uses less digits than its factorization.

72352732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19388 (or 19386 counting only the distinct ones).

The product of its digits is 17640, while the sum is 31.

The square root of 72352732 is about 8506.0409121988. The cubic root of 72352732 is about 416.6950212882.

The spelling of 72352732 in words is "seventy-two million, three hundred fifty-two thousand, seven hundred thirty-two".