228872788 has 12 divisors (see below), whose sum is σ = 401232832. Its totient is φ = 114234840.

The previous prime is 228872771. The next prime is 228872797. The reversal of 228872788 is 887278822.

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, 47820 + ... + 52387.

Almost surely, 2^228872788 is an apocalyptic number.

It is an amenable number.

228872788 is a deficient number, since it is larger than the sum of its proper divisors (172360044).

228872788 is a wasteful number, since it uses less digits than its factorization.

228872788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100782 (or 100780 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 52.

The square root of 228872788 is about 15128.5421637381. The cubic root of 228872788 is about 611.6900084724.

It can be divided in two parts, 2288 and 72788, that added together give a square (75076 = 274²).

The spelling of 228872788 in words is "two hundred twenty-eight million, eight hundred seventy-two thousand, seven hundred eighty-eight".