228395868 has 48 divisors (see below), whose sum is σ = 544906656. Its totient is φ = 74430720.

The previous prime is 228395863. The next prime is 228395891. The reversal of 228395868 is 868593822.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 228395868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228395861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267330 + ... + 268182.

It is an arithmetic number, because the mean of its divisors is an integer number (11352222).

Almost surely, 2^228395868 is an apocalyptic number.

It is an amenable number.

228395868 is an abundant number, since it is smaller than the sum of its proper divisors (316510788).

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

228395868 is a wasteful number, since it uses less digits than its factorization.

228395868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1332 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 228395868 is about 15112.7716849028. The cubic root of 228395868 is about 611.2648376925.

The spelling of 228395868 in words is "two hundred twenty-eight million, three hundred ninety-five thousand, eight hundred sixty-eight".