72620384 has 24 divisors (see below), whose sum is σ = 149189040. Its totient is φ = 34731136.

The previous prime is 72620369. The next prime is 72620393. The reversal of 72620384 is 48302627.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72620384.

It is a congruent number.

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, 48599 + ... + 50070.

It is an arithmetic number, because the mean of its divisors is an integer number (6216210).

Almost surely, 2^72620384 is an apocalyptic number.

It is an amenable number.

72620384 is an abundant number, since it is smaller than the sum of its proper divisors (76568656).

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

72620384 is a wasteful number, since it uses less digits than its factorization.

72620384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98702 (or 98694 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 72620384 is about 8521.7594427442. The cubic root of 72620384 is about 417.2082109045.

The spelling of 72620384 in words is "seventy-two million, six hundred twenty thousand, three hundred eighty-four".