72928344 has 32 divisors (see below), whose sum is σ = 186563520. Its totient is φ = 23743776.

The previous prime is 72928343. The next prime is 72928357. The reversal of 72928344 is 44382927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72928343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34302 + ... + 36365.

It is an arithmetic number, because the mean of its divisors is an integer number (5830110).

Almost surely, 2^72928344 is an apocalyptic number.

It is an amenable number.

72928344 is an abundant number, since it is smaller than the sum of its proper divisors (113635176).

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

72928344 is a wasteful number, since it uses less digits than its factorization.

72928344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70719 (or 70715 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 72928344 is about 8539.8093655538. The cubic root of 72928344 is about 417.7971284190.

The spelling of 72928344 in words is "seventy-two million, nine hundred twenty-eight thousand, three hundred forty-four".