2168228 has 12 divisors (see below), whose sum is σ = 3829980. Its totient is φ = 1073952.

The previous prime is 2168219. The next prime is 2168239. The reversal of 2168228 is 8228612.

It can be written as a sum of positive squares in 2 ways, for example, as 1459264 + 708964 = 1208^2 + 842^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2168228.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051 + ... + 2922.

It is an arithmetic number, because the mean of its divisors is an integer number (319165).

2^2168228 is an apocalyptic number.

It is an amenable number.

2168228 is a deficient number, since it is larger than the sum of its proper divisors (1661752).

2168228 is a wasteful number, since it uses less digits than its factorization.

2168228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086 (or 5084 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 2168228 is about 1472.4904074390. The cubic root of 2168228 is about 129.4300094355.

The spelling of 2168228 in words is "two million, one hundred sixty-eight thousand, two hundred twenty-eight".