72384156 has 36 divisors (see below), whose sum is σ = 197047032. Its totient is φ = 22271904.

The previous prime is 72384139. The next prime is 72384161. The reversal of 72384156 is 65148327.

72384156 is a `hidden beast` number, since 7 + 238 + 415 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72384156.

It is a congruent number.

It is an unprimeable number.

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, 76866 + ... + 77801.

Almost surely, 2^72384156 is an apocalyptic number.

It is an amenable number.

72384156 is an abundant number, since it is smaller than the sum of its proper divisors (124662876).

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

72384156 is a wasteful number, since it uses less digits than its factorization.

72384156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154690 (or 154685 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 72384156 is about 8507.8878695009. The cubic root of 72384156 is about 416.7553384260.

The spelling of 72384156 in words is "seventy-two million, three hundred eighty-four thousand, one hundred fifty-six".