72238227 has 8 divisors (see below), whose sum is σ = 96403920. Its totient is φ = 48115680.

The previous prime is 72238223. The next prime is 72238241. The reversal of 72238227 is 72283227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72238227 - 2² = 72238223 is a prime.

It is a super-2 number, since 2×72238227² = 10436722880207058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72238223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6652 + ... + 13737.

It is an arithmetic number, because the mean of its divisors is an integer number (12050490).

Almost surely, 2^72238227 is an apocalyptic number.

72238227 is a deficient number, since it is larger than the sum of its proper divisors (24165693).

72238227 is a wasteful number, since it uses less digits than its factorization.

72238227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21573.

The product of its digits is 18816, while the sum is 33.

The square root of 72238227 is about 8499.3074423743. The cubic root of 72238227 is about 416.4750855433.

The spelling of 72238227 in words is "seventy-two million, two hundred thirty-eight thousand, two hundred twenty-seven".