72530658 has 24 divisors (see below), whose sum is σ = 157321008. Its totient is φ = 24150552.

The previous prime is 72530651. The next prime is 72530713. The reversal of 72530658 is 85603527.

72530658 is a `hidden beast` number, since 72 + 530 + 6 + 58 = 666.

It is not an unprimeable number, because it can be changed into a prime (72530651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21985 + ... + 25067.

It is an arithmetic number, because the mean of its divisors is an integer number (6555042).

Almost surely, 2^72530658 is an apocalyptic number.

72530658 is an abundant number, since it is smaller than the sum of its proper divisors (84790350).

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

72530658 is a wasteful number, since it uses less digits than its factorization.

72530658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 72530658 is about 8516.4932924297. The cubic root of 72530658 is about 417.0363131084.

The spelling of 72530658 in words is "seventy-two million, five hundred thirty thousand, six hundred fifty-eight".