72906944 has 28 divisors (see below), whose sum is σ = 157828488. Its totient is φ = 33139200.

The previous prime is 72906943. The next prime is 72906997. The reversal of 72906944 is 44960927.

It is not an unprimeable number, because it can be changed into a prime (72906943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51077 + ... + 52484.

Almost surely, 2^72906944 is an apocalyptic number.

It is an amenable number.

72906944 is an abundant number, since it is smaller than the sum of its proper divisors (84921544).

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

72906944 is a wasteful number, since it uses less digits than its factorization.

72906944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103584 (or 103574 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 72906944 is about 8538.5563182543. The cubic root of 72906944 is about 417.7562584694.

The spelling of 72906944 in words is "seventy-two million, nine hundred six thousand, nine hundred forty-four".