72741056 has 14 divisors (see below), whose sum is σ = 144345660. Its totient is φ = 36370496.

The previous prime is 72741047. The next prime is 72741073. The reversal of 72741056 is 65014727.

It is a super-2 number, since 2×72741056² = 10582522455990272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 568226 + ... + 568353.

Almost surely, 2^72741056 is an apocalyptic number.

It is an amenable number.

72741056 is a deficient number, since it is larger than the sum of its proper divisors (71604604).

72741056 is a wasteful number, since it uses less digits than its factorization.

72741056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136591 (or 1136581 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 72741056 is about 8528.8367319348. The cubic root of 72741056 is about 417.4391721772.

The spelling of 72741056 in words is "seventy-two million, seven hundred forty-one thousand, fifty-six".