72418688 has 16 divisors (see below), whose sum is σ = 144271860. Its totient is φ = 36209280.

The previous prime is 72418663. The next prime is 72418699. The reversal of 72418688 is 88681427.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282758 + ... + 283013.

Almost surely, 2^72418688 is an apocalyptic number.

It is an amenable number.

72418688 is a deficient number, since it is larger than the sum of its proper divisors (71853172).

72418688 is an equidigital number, since it uses as much as digits as its factorization.

72418688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565785 (or 565773 counting only the distinct ones).

The product of its digits is 172032, while the sum is 44.

The square root of 72418688 is about 8509.9170383735. The cubic root of 72418688 is about 416.8216011194.

The spelling of 72418688 in words is "seventy-two million, four hundred eighteen thousand, six hundred eighty-eight".