22042128 has 40 divisors (see below), whose sum is σ = 59941600. Its totient is φ = 6960384.

The previous prime is 22042127. The next prime is 22042157. The reversal of 22042128 is 82124022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22042123) 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, 11173 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (1498540).

Almost surely, 2^22042128 is an apocalyptic number.

It is an amenable number.

22042128 is an abundant number, since it is smaller than the sum of its proper divisors (37899472).

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

22042128 is a wasteful number, since it uses less digits than its factorization.

22042128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24199 (or 24193 counting only the distinct ones).

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

The square root of 22042128 is about 4694.9044718716. The cubic root of 22042128 is about 280.3826740427.

The spelling of 22042128 in words is "twenty-two million, forty-two thousand, one hundred twenty-eight".