228520888 has 8 divisors (see below), whose sum is σ = 428476680. Its totient is φ = 114260440.

The previous prime is 228520849. The next prime is 228520907. The reversal of 228520888 is 888025822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14282548 + ... + 14282563.

It is an arithmetic number, because the mean of its divisors is an integer number (53559585).

Almost surely, 2^228520888 is an apocalyptic number.

It is an amenable number.

228520888 is a deficient number, since it is larger than the sum of its proper divisors (199955792).

228520888 is a wasteful number, since it uses less digits than its factorization.

228520888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28565117 (or 28565113 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The square root of 228520888 is about 15116.9073556730. The cubic root of 228520888 is about 611.3763493283.

The spelling of 228520888 in words is "two hundred twenty-eight million, five hundred twenty thousand, eight hundred eighty-eight".