228186 has 24 divisors (see below), whose sum is σ = 565344. Its totient is φ = 65160.

The previous prime is 228181. The next prime is 228197. The reversal of 228186 is 681822.

It is not an unprimeable number, because it can be changed into a prime (228181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (23556).

2²²⁸¹⁸⁶ is an apocalyptic number.

228186 is an abundant number, since it is smaller than the sum of its proper divisors (337158).

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

228186 is a wasteful number, since it uses less digits than its factorization.

228186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1823 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 228186 is about 477.6881828139. The cubic root of 228186 is about 61.1077554325.

It can be divided in two parts, 228 and 186, that added together give a palindrome (414).

The spelling of 228186 in words is "two hundred twenty-eight thousand, one hundred eighty-six".