2022228 has 72 divisors (see below), whose sum is σ = 5733000. Its totient is φ = 596736.

The previous prime is 2022217. The next prime is 2022233. The reversal of 2022228 is 8222202.

It can be written as a sum of positive squares in 4 ways, for example, as 144 + 2022084 = 12^2 + 1422^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2022228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13498 + ... + 13646.

It is an arithmetic number, because the mean of its divisors is an integer number (79625).

2^2022228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866500).

2022228 is an abundant number, since it is smaller than the sum of its proper divisors (3710772).

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

2022228 is a wasteful number, since it uses less digits than its factorization.

2022228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2022228 is about 1422.0506320100. The cubic root of 2022228 is about 126.4571451538.

The spelling of 2022228 in words is "two million, twenty-two thousand, two hundred twenty-eight".