72658280 has 32 divisors (see below), whose sum is σ = 172087200. Its totient is φ = 27533376.

The previous prime is 72658279. The next prime is 72658297. The reversal of 72658280 is 8285627.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47042 + ... + 48561.

It is an arithmetic number, because the mean of its divisors is an integer number (5377725).

Almost surely, 2^72658280 is an apocalyptic number.

It is an amenable number.

72658280 is an abundant number, since it is smaller than the sum of its proper divisors (99428920).

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

72658280 is a wasteful number, since it uses less digits than its factorization.

72658280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95633 (or 95629 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 72658280 is about 8523.9826372418. The cubic root of 72658280 is about 417.2807698386.

The spelling of 72658280 in words is "seventy-two million, six hundred fifty-eight thousand, two hundred eighty".