228932868 has 12 divisors (see below), whose sum is σ = 534176720. Its totient is φ = 76310952.

The previous prime is 228932797. The next prime is 228932909. The reversal of 228932868 is 868239822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9538858 + ... + 9538881.

Almost surely, 2^228932868 is an apocalyptic number.

It is an amenable number.

228932868 is an abundant number, since it is smaller than the sum of its proper divisors (305243852).

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

228932868 is a wasteful number, since it uses less digits than its factorization.

228932868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19077746 (or 19077744 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 228932868 is about 15130.5276841226. The cubic root of 228932868 is about 611.7435274611.

The spelling of 228932868 in words is "two hundred twenty-eight million, nine hundred thirty-two thousand, eight hundred sixty-eight".