72372144 has 40 divisors (see below), whose sum is σ = 201344752. Its totient is φ = 22268160.

The previous prime is 72372119. The next prime is 72372149. The reversal of 72372144 is 44127327.

It is not an unprimeable number, because it can be changed into a prime (72372149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57367 + ... + 58614.

Almost surely, 2^72372144 is an apocalyptic number.

It is an amenable number.

72372144 is an abundant number, since it is smaller than the sum of its proper divisors (128972608).

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

72372144 is a wasteful number, since it uses less digits than its factorization.

72372144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116005 (or 115999 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 72372144 is about 8507.1819070712. The cubic root of 72372144 is about 416.7322839237.

The spelling of 72372144 in words is "seventy-two million, three hundred seventy-two thousand, one hundred forty-four".