72234858 has 32 divisors (see below), whose sum is σ = 153240192. Its totient is φ = 22651200.

The previous prime is 72234857. The next prime is 72234859. The reversal of 72234858 is 85843227.

It is an interprime number because it is at equal distance from previous prime (72234857) and next prime (72234859).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72234857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4128 + ... + 12708.

It is an arithmetic number, because the mean of its divisors is an integer number (4788756).

Almost surely, 2^72234858 is an apocalyptic number.

72234858 is an abundant number, since it is smaller than the sum of its proper divisors (81005334).

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

72234858 is a wasteful number, since it uses less digits than its factorization.

72234858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670.

The product of its digits is 107520, while the sum is 39.

The square root of 72234858 is about 8499.1092474447. The cubic root of 72234858 is about 416.4686110102.

The spelling of 72234858 in words is "seventy-two million, two hundred thirty-four thousand, eight hundred fifty-eight".