72152304 has 60 divisors (see below), whose sum is σ = 216832104. Its totient is φ = 20614272.

The previous prime is 72152303. The next prime is 72152309. The reversal of 72152304 is 40325127.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72152303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12987 + ... + 17690.

Almost surely, 2^72152304 is an apocalyptic number.

It is an amenable number.

72152304 is an abundant number, since it is smaller than the sum of its proper divisors (144679800).

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

72152304 is a wasteful number, since it uses less digits than its factorization.

72152304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30702 (or 30689 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 72152304 is about 8494.2512324513. The cubic root of 72152304 is about 416.3098960603.

The spelling of 72152304 in words is "seventy-two million, one hundred fifty-two thousand, three hundred four".