2142228 has 24 divisors (see below), whose sum is σ = 5453280. Its totient is φ = 649120.

The previous prime is 2142227. The next prime is 2142229. The reversal of 2142228 is 8222412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2142227) and next prime (2142229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142227) 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, 7983 + ... + 8246.

It is an arithmetic number, because the mean of its divisors is an integer number (227220).

2^2142228 is an apocalyptic number.

It is an amenable number.

2142228 is an abundant number, since it is smaller than the sum of its proper divisors (3311052).

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

2142228 is a wasteful number, since it uses less digits than its factorization.

2142228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16247 (or 16245 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 2142228 is about 1463.6352004513. The cubic root of 2142228 is about 128.9105804202.

It can be divided in two parts, 214 and 2228, that added together give a palindrome (2442).

The spelling of 2142228 in words is "two million, one hundred forty-two thousand, two hundred twenty-eight".