222416172 has 48 divisors (see below), whose sum is σ = 629059200. Its totient is φ = 67398480.

The previous prime is 222416171. The next prime is 222416177. The reversal of 222416172 is 271614222.

222416172 is a `hidden beast` number, since 2 + 2 + 2 + 41 + 617 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (222416171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92422 + ... + 94797.

It is an arithmetic number, because the mean of its divisors is an integer number (13105400).

Almost surely, 2^222416172 is an apocalyptic number.

222416172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222416172 is an abundant number, since it is smaller than the sum of its proper divisors (406643028).

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

222416172 is a wasteful number, since it uses less digits than its factorization.

222416172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187243 (or 187235 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 222416172 is about 14913.6237045193. The cubic root of 222416172 is about 605.8830281045.

The spelling of 222416172 in words is "two hundred twenty-two million, four hundred sixteen thousand, one hundred seventy-two".