2228186 has 16 divisors (see below), whose sum is σ = 3545640. Its totient is φ = 1048320.

The previous prime is 2228183. The next prime is 2228189. The reversal of 2228186 is 6818222.

It is an interprime number because it is at equal distance from previous prime (2228183) and next prime (2228189).

It can be written as a sum of positive squares in 4 ways, for example, as 776161 + 1452025 = 881^2 + 1205^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2228183) 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, 1910 + ... + 2846.

2^2228186 is an apocalyptic number.

2228186 is a deficient number, since it is larger than the sum of its proper divisors (1317454).

2228186 is a wasteful number, since it uses less digits than its factorization.

2228186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

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

The square root of 2228186 is about 1492.7109566155. The cubic root of 2228186 is about 130.6122207686.

The spelling of 2228186 in words is "two million, two hundred twenty-eight thousand, one hundred eighty-six".