72318830 has 8 divisors (see below), whose sum is σ = 130173912. Its totient is φ = 28927528.

The previous prime is 72318823. The next prime is 72318847. The reversal of 72318830 is 3881327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3615932 + ... + 3615951.

It is an arithmetic number, because the mean of its divisors is an integer number (16271739).

Almost surely, 2^72318830 is an apocalyptic number.

72318830 is a deficient number, since it is larger than the sum of its proper divisors (57855082).

72318830 is a wasteful number, since it uses less digits than its factorization.

72318830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231890.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 72318830 is about 8504.0478596960. The cubic root of 72318830 is about 416.6299281385.

It can be divided in two parts, 7231 and 8830, that added together give a palindrome (16061).

The spelling of 72318830 in words is "seventy-two million, three hundred eighteen thousand, eight hundred thirty".