228117768 has 32 divisors (see below), whose sum is σ = 584206560. Its totient is φ = 74184320.

The previous prime is 228117763. The next prime is 228117803. The reversal of 228117768 is 867711822.

It is not an unprimeable number, because it can be changed into a prime (228117763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114930 + ... + 116897.

It is an arithmetic number, because the mean of its divisors is an integer number (18256455).

Almost surely, 2^228117768 is an apocalyptic number.

It is an amenable number.

228117768 is an abundant number, since it is smaller than the sum of its proper divisors (356088792).

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

228117768 is a wasteful number, since it uses less digits than its factorization.

228117768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231877 (or 231873 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The square root of 228117768 is about 15103.5680552643. The cubic root of 228117768 is about 611.0166402751.

The spelling of 228117768 in words is "two hundred twenty-eight million, one hundred seventeen thousand, seven hundred sixty-eight".