228588864 has 56 divisors (see below), whose sum is σ = 691213248. Its totient is φ = 65310720.

The previous prime is 228588863. The next prime is 228588869. The reversal of 228588864 is 468885822.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228588863) by changing a digit.

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, 83697 + ... + 86384.

Almost surely, 2^228588864 is an apocalyptic number.

228588864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228588864 is an abundant number, since it is smaller than the sum of its proper divisors (462624384).

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

228588864 is a wasteful number, since it uses less digits than its factorization.

228588864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170103 (or 170093 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 51.

The square root of 228588864 is about 15119.1555319733. The cubic root of 228588864 is about 611.4369634791.

The spelling of 228588864 in words is "two hundred twenty-eight million, five hundred eighty-eight thousand, eight hundred sixty-four".