72836218 has 16 divisors (see below), whose sum is σ = 134467200. Its totient is φ = 28814256.

The previous prime is 72836201. The next prime is 72836221. The reversal of 72836218 is 81263827.

It is a super-2 number, since 2×72836218² = 10610229305087048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199918 + ... + 200281.

It is an arithmetic number, because the mean of its divisors is an integer number (8404200).

Almost surely, 2^72836218 is an apocalyptic number.

72836218 is a deficient number, since it is larger than the sum of its proper divisors (61630982).

72836218 is a wasteful number, since it uses less digits than its factorization.

72836218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400221.

The product of its digits is 32256, while the sum is 37.

The square root of 72836218 is about 8534.4137467081. The cubic root of 72836218 is about 417.6211282756.

The spelling of 72836218 in words is "seventy-two million, eight hundred thirty-six thousand, two hundred eighteen".