72194916 has 24 divisors (see below), whose sum is σ = 169259104. Its totient is φ = 23950080.

The previous prime is 72194897. The next prime is 72194921. The reversal of 72194916 is 61949127.

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 7 ways as a sum of consecutive naturals, for example, 11725 + ... + 16788.

Almost surely, 2^72194916 is an apocalyptic number.

It is an amenable number.

72194916 is an abundant number, since it is smaller than the sum of its proper divisors (97064188).

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

72194916 is a wasteful number, since it uses less digits than its factorization.

72194916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28731 (or 28729 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 72194916 is about 8496.7591468748. The cubic root of 72194916 is about 416.3918352601.

The spelling of 72194916 in words is "seventy-two million, one hundred ninety-four thousand, nine hundred sixteen".