72856338 has 16 divisors (see below), whose sum is σ = 145871616. Its totient is φ = 24258960.

The previous prime is 72856337. The next prime is 72856391. The reversal of 72856338 is 83365827.

It is a self number, because there is not a number n which added to its sum of digits gives 72856338.

It is not an unprimeable number, because it can be changed into a prime (72856337) 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 7 ways as a sum of consecutive naturals, for example, 181 + ... + 12072.

It is an arithmetic number, because the mean of its divisors is an integer number (9116976).

Almost surely, 2^72856338 is an apocalyptic number.

72856338 is an abundant number, since it is smaller than the sum of its proper divisors (73015278).

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

72856338 is a wasteful number, since it uses less digits than its factorization.

72856338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13249.

The product of its digits is 241920, while the sum is 42.

The square root of 72856338 is about 8535.5924223220. The cubic root of 72856338 is about 417.6595787597.

The spelling of 72856338 in words is "seventy-two million, eight hundred fifty-six thousand, three hundred thirty-eight".