228268 has 12 divisors (see below), whose sum is σ = 403200. Its totient is φ = 113072.

The previous prime is 228257. The next prime is 228281. The reversal of 228268 is 862822.

It is a happy number.

It is an unprimeable number.

228268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405 + ... + 787.

It is an arithmetic number, because the mean of its divisors is an integer number (33600).

2²²⁸²⁶⁸ is an apocalyptic number.

It is an amenable number.

228268 is a deficient number, since it is larger than the sum of its proper divisors (174932).

228268 is a wasteful number, since it uses less digits than its factorization.

228268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 228268 is about 477.7740051531. The cubic root of 228268 is about 61.1150743680.

It can be divided in two parts, 228 and 268, that added together give a triangular number (496 = T₃₁).

The spelling of 228268 in words is "two hundred twenty-eight thousand, two hundred sixty-eight".