72044736 has 28 divisors (see below), whose sum is σ = 190618872. Its totient is φ = 24014848.

The previous prime is 72044719. The next prime is 72044741. The reversal of 72044736 is 63744027.

It is a junction number, because it is equal to n+sod(n) for n = 72044697 and 72044706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187425 + ... + 187808.

Almost surely, 2^72044736 is an apocalyptic number.

It is an amenable number.

72044736 is an abundant number, since it is smaller than the sum of its proper divisors (118574136).

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

72044736 is a wasteful number, since it uses less digits than its factorization.

72044736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375248 (or 375238 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 72044736 is about 8487.9170589727. The cubic root of 72044736 is about 416.1029084659.

The spelling of 72044736 in words is "seventy-two million, forty-four thousand, seven hundred thirty-six".