228366 has 16 divisors (see below), whose sum is σ = 507600. Its totient is φ = 76104.

The previous prime is 228359. The next prime is 228383. The reversal of 228366 is 663822.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228366.

It is an unprimeable number.

228366 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 7 ways as a sum of consecutive naturals, for example, 2061 + ... + 2168.

It is an arithmetic number, because the mean of its divisors is an integer number (31725).

2²²⁸³⁶⁶ is an apocalyptic number.

228366 is an abundant number, since it is smaller than the sum of its proper divisors (279234).

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

228366 is a wasteful number, since it uses less digits than its factorization.

228366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240 (or 4234 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 228366 is about 477.8765530971. The cubic root of 228366 is about 61.1238190897.

The spelling of 228366 in words is "two hundred twenty-eight thousand, three hundred sixty-six".