228163168 has 24 divisors (see below), whose sum is σ = 450470160. Its totient is φ = 113758080.

The previous prime is 228163157. The next prime is 228163181. The reversal of 228163168 is 861361822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1558 + ... + 21418.

It is an arithmetic number, because the mean of its divisors is an integer number (18769590).

Almost surely, 2^228163168 is an apocalyptic number.

It is an amenable number.

228163168 is a deficient number, since it is larger than the sum of its proper divisors (222306992).

228163168 is a wasteful number, since it uses less digits than its factorization.

228163168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20230 (or 20222 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 228163168 is about 15105.0709366093. The cubic root of 228163168 is about 611.0571724319.

The spelling of 228163168 in words is "two hundred twenty-eight million, one hundred sixty-three thousand, one hundred sixty-eight".