72211238 has 16 divisors (see below), whose sum is σ = 118853136. Its totient is φ = 32631840.

The previous prime is 72211219. The next prime is 72211253. The reversal of 72211238 is 83211227.

It is a congruent number.

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, 5681 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (7428321).

Almost surely, 2^72211238 is an apocalyptic number.

72211238 is a deficient number, since it is larger than the sum of its proper divisors (46641898).

72211238 is a wasteful number, since it uses less digits than its factorization.

72211238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19159.

The product of its digits is 1344, while the sum is 26.

The square root of 72211238 is about 8497.7195764511. The cubic root of 72211238 is about 416.4232125177.

The spelling of 72211238 in words is "seventy-two million, two hundred eleven thousand, two hundred thirty-eight".