228510688 has 24 divisors (see below), whose sum is σ = 514149552. Its totient is φ = 97933056.

The previous prime is 228510673. The next prime is 228510743. The reversal of 228510688 is 886015822.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 228510688.

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, 509845 + ... + 510292.

It is an arithmetic number, because the mean of its divisors is an integer number (21422898).

Almost surely, 2^228510688 is an apocalyptic number.

228510688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228510688 is an abundant number, since it is smaller than the sum of its proper divisors (285638864).

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

228510688 is a wasteful number, since it uses less digits than its factorization.

228510688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020154 (or 1020146 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 228510688 is about 15116.5699813152. The cubic root of 228510688 is about 611.3672529584.

The spelling of 228510688 in words is "two hundred twenty-eight million, five hundred ten thousand, six hundred eighty-eight".