228015588 has 12 divisors (see below), whose sum is σ = 532036400. Its totient is φ = 76005192.

The previous prime is 228015551. The next prime is 228015677. The reversal of 228015588 is 885510822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×228015588³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3 ways as a sum of consecutive naturals, for example, 9500638 + ... + 9500661.

Almost surely, 2^228015588 is an apocalyptic number.

It is an amenable number.

228015588 is an abundant number, since it is smaller than the sum of its proper divisors (304020812).

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

228015588 is a wasteful number, since it uses less digits than its factorization.

228015588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19001306 (or 19001304 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 228015588 is about 15100.1850319789. The cubic root of 228015588 is about 610.9253964627.

The spelling of 228015588 in words is "two hundred twenty-eight million, fifteen thousand, five hundred eighty-eight".