228688924 has 12 divisors (see below), whose sum is σ = 400317624. Its totient is φ = 114312464.

The previous prime is 228688919. The next prime is 228688937. The reversal of 228688924 is 429886822.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16242 + ... + 26854.

It is an arithmetic number, because the mean of its divisors is an integer number (33359802).

Almost surely, 2^228688924 is an apocalyptic number.

It is an amenable number.

228688924 is a deficient number, since it is larger than the sum of its proper divisors (171628700).

228688924 is a wasteful number, since it uses less digits than its factorization.

228688924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16004 (or 16002 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 228688924 is about 15122.4642171837. The cubic root of 228688924 is about 611.5261650509.

The spelling of 228688924 in words is "two hundred twenty-eight million, six hundred eighty-eight thousand, nine hundred twenty-four".