22164244 has 12 divisors (see below), whose sum is σ = 38822868. Its totient is φ = 11072000.

The previous prime is 22164239. The next prime is 22164253. The reversal of 22164244 is 44246122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15507844 + 6656400 = 3938^2 + 2580^2 .

It is a congruent number.

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, 4674 + ... + 8134.

It is an arithmetic number, because the mean of its divisors is an integer number (3235239).

Almost surely, 2^22164244 is an apocalyptic number.

It is an amenable number.

22164244 is a deficient number, since it is larger than the sum of its proper divisors (16658624).

22164244 is a wasteful number, since it uses less digits than its factorization.

22164244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066 (or 5064 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 22164244 is about 4707.8916725005. The cubic root of 22164244 is about 280.8995051877.

The spelling of 22164244 in words is "twenty-two million, one hundred sixty-four thousand, two hundred forty-four".