228144222 has 32 divisors (see below), whose sum is σ = 529032960. Its totient is φ = 72741240.

The previous prime is 228144173. The next prime is 228144281. The reversal of 228144222 is 222441822.

228144222 is a `hidden beast` number, since 228 + 14 + 422 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90604 + ... + 93087.

It is an arithmetic number, because the mean of its divisors is an integer number (16532280).

Almost surely, 2^228144222 is an apocalyptic number.

228144222 is an abundant number, since it is smaller than the sum of its proper divisors (300888738).

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

228144222 is a wasteful number, since it uses less digits than its factorization.

228144222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183725 (or 183719 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 228144222 is about 15104.4437832050. The cubic root of 228144222 is about 611.0402584988.

The spelling of 228144222 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred twenty-two".