72701418 has 24 divisors (see below), whose sum is σ = 154462752. Its totient is φ = 22807744.

The previous prime is 72701399. The next prime is 72701437. The reversal of 72701418 is 81410727.

It is an interprime number because it is at equal distance from previous prime (72701399) and next prime (72701437).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19230 + ... + 22697.

It is an arithmetic number, because the mean of its divisors is an integer number (6435948).

Almost surely, 2^72701418 is an apocalyptic number.

72701418 is an abundant number, since it is smaller than the sum of its proper divisors (81761334).

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

72701418 is a wasteful number, since it uses less digits than its factorization.

72701418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41966 (or 41949 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 72701418 is about 8526.5126517234. The cubic root of 72701418 is about 417.3633348568.

The spelling of 72701418 in words is "seventy-two million, seven hundred one thousand, four hundred eighteen".