72224976 has 80 divisors (see below), whose sum is σ = 200933568. Its totient is φ = 22272000.

The previous prime is 72224969. The next prime is 72224981. The reversal of 72224976 is 67942227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49051 + ... + 50501.

Almost surely, 2^72224976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72224976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100466784).

72224976 is an abundant number, since it is smaller than the sum of its proper divisors (128708592).

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

72224976 is a wasteful number, since it uses less digits than its factorization.

72224976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1534 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 72224976 is about 8498.5278725200. The cubic root of 72224976 is about 416.4496186538.

The spelling of 72224976 in words is "seventy-two million, two hundred twenty-four thousand, nine hundred seventy-six".