228735788 has 12 divisors (see below), whose sum is σ = 401552592. Its totient is φ = 114006480.

The previous prime is 228735779. The next prime is 228735821. The reversal of 228735788 is 887537822.

228735788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 88928 + ... + 91463.

It is an arithmetic number, because the mean of its divisors is an integer number (33462716).

Almost surely, 2^228735788 is an apocalyptic number.

It is an amenable number.

228735788 is a deficient number, since it is larger than the sum of its proper divisors (172816804).

228735788 is a wasteful number, since it uses less digits than its factorization.

228735788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180712 (or 180710 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The square root of 228735788 is about 15124.0136207291. The cubic root of 228735788 is about 611.5679344617.

The spelling of 228735788 in words is "two hundred twenty-eight million, seven hundred thirty-five thousand, seven hundred eighty-eight".