72730748 has 12 divisors (see below), whose sum is σ = 127439592. Its totient is φ = 36319440.

The previous prime is 72730739. The next prime is 72730751. The reversal of 72730748 is 84703727.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7790 + ... + 14357.

It is an arithmetic number, because the mean of its divisors is an integer number (10619966).

Almost surely, 2^72730748 is an apocalyptic number.

It is an amenable number.

72730748 is a deficient number, since it is larger than the sum of its proper divisors (54708844).

72730748 is a wasteful number, since it uses less digits than its factorization.

72730748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22972 (or 22970 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 72730748 is about 8528.2324077150. The cubic root of 72730748 is about 417.4194530690.

The spelling of 72730748 in words is "seventy-two million, seven hundred thirty thousand, seven hundred forty-eight".