72752432 has 20 divisors (see below), whose sum is σ = 141118200. Its totient is φ = 36334848.

The previous prime is 72752413. The next prime is 72752447. The reversal of 72752432 is 23425727.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15944 + ... + 19992.

It is an arithmetic number, because the mean of its divisors is an integer number (7055910).

Almost surely, 2^72752432 is an apocalyptic number.

It is an amenable number.

72752432 is a deficient number, since it is larger than the sum of its proper divisors (68365768).

72752432 is a wasteful number, since it uses less digits than its factorization.

72752432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180 (or 5174 counting only the distinct ones).

The product of its digits is 23520, while the sum is 32.

The square root of 72752432 is about 8529.5036197894. The cubic root of 72752432 is about 417.4609321972.

The spelling of 72752432 in words is "seventy-two million, seven hundred fifty-two thousand, four hundred thirty-two".