228866 has 16 divisors (see below), whose sum is σ = 381888. Its totient is φ = 102000.

The previous prime is 228859. The next prime is 228869. The reversal of 228866 is 668822.

It is a happy number.

228866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228869) 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, 2171 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (23868).

2²²⁸⁸⁶⁶ is an apocalyptic number.

228866 is a deficient number, since it is larger than the sum of its proper divisors (153022).

228866 is a wasteful number, since it uses less digits than its factorization.

228866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217.

The product of its digits is 9216, while the sum is 32.

The square root of 228866 is about 478.3994147154. The cubic root of 228866 is about 61.1683961164.

It can be divided in two parts, 22 and 8866, that added together give a palindrome (8888).

The spelling of 228866 in words is "two hundred twenty-eight thousand, eight hundred sixty-six".