72412326 has 64 divisors (see below), whose sum is σ = 191923200. Its totient is φ = 19787328.

The previous prime is 72412283. The next prime is 72412339. The reversal of 72412326 is 62321427.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 72412326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4530 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (2998800).

Almost surely, 2^72412326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72412326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95961600).

72412326 is an abundant number, since it is smaller than the sum of its proper divisors (119510874).

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

72412326 is a wasteful number, since it uses less digits than its factorization.

72412326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8370 (or 8364 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 72412326 is about 8509.5432309848. The cubic root of 72412326 is about 416.8093948010.

The spelling of 72412326 in words is "seventy-two million, four hundred twelve thousand, three hundred twenty-six".