228989886 has 16 divisors (see below), whose sum is σ = 477892224. Its totient is φ = 73011224.

The previous prime is 228989857. The next prime is 228989903. The reversal of 228989886 is 688989822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829536 + ... + 829811.

It is an arithmetic number, because the mean of its divisors is an integer number (29868264).

Almost surely, 2^228989886 is an apocalyptic number.

228989886 is an abundant number, since it is smaller than the sum of its proper divisors (248902338).

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

228989886 is a wasteful number, since it uses less digits than its factorization.

228989886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659375.

The product of its digits is 7962624, while the sum is 60.

The square root of 228989886 is about 15132.4117707654. The cubic root of 228989886 is about 611.7943101751.

The spelling of 228989886 in words is "two hundred twenty-eight million, nine hundred eighty-nine thousand, eight hundred eighty-six".