72158674 has 24 divisors (see below), whose sum is σ = 126206208. Its totient is φ = 30852360.

The previous prime is 72158663. The next prime is 72158689. The reversal of 72158674 is 47685127.

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, 72319 + ... + 73309.

It is an arithmetic number, because the mean of its divisors is an integer number (5258592).

Almost surely, 2^72158674 is an apocalyptic number.

72158674 is a deficient number, since it is larger than the sum of its proper divisors (54047534).

72158674 is a wasteful number, since it uses less digits than its factorization.

72158674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1743 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 72158674 is about 8494.6261836528. The cubic root of 72158674 is about 416.3221470713.

It can be divided in two parts, 721 and 58674, that added together give a palindrome (59395).

The spelling of 72158674 in words is "seventy-two million, one hundred fifty-eight thousand, six hundred seventy-four".