72880432 has 10 divisors (see below), whose sum is σ = 141205868. Its totient is φ = 36440208.

The previous prime is 72880427. The next prime is 72880433. The reversal of 72880432 is 23408827.

It is not an unprimeable number, because it can be changed into a prime (72880433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277498 + ... + 2277529.

Almost surely, 2^72880432 is an apocalyptic number.

It is an amenable number.

72880432 is a deficient number, since it is larger than the sum of its proper divisors (68325436).

72880432 is a wasteful number, since it uses less digits than its factorization.

72880432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555035 (or 4555029 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 72880432 is about 8537.0036898200. The cubic root of 72880432 is about 417.7056144745.

The spelling of 72880432 in words is "seventy-two million, eight hundred eighty thousand, four hundred thirty-two".