72399882 has 16 divisors (see below), whose sum is σ = 144950400. Its totient is φ = 24108192.

The previous prime is 72399869. The next prime is 72399893. The reversal of 72399882 is 28899327.

It is a happy number.

It is a super-2 number, since 2×72399882² = 10483485827227848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (9059400).

Almost surely, 2^72399882 is an apocalyptic number.

72399882 is an abundant number, since it is smaller than the sum of its proper divisors (72550518).

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

72399882 is a wasteful number, since it uses less digits than its factorization.

72399882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557.

The product of its digits is 435456, while the sum is 48.

The square root of 72399882 is about 8508.8120204879. The cubic root of 72399882 is about 416.7855173134.

The spelling of 72399882 in words is "seventy-two million, three hundred ninety-nine thousand, eight hundred eighty-two".