22243188 has 36 divisors (see below), whose sum is σ = 57051680. Its totient is φ = 6739920.

The previous prime is 22243187. The next prime is 22243201. The reversal of 22243188 is 88134222.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6208 + ... + 9111.

Almost surely, 2^22243188 is an apocalyptic number.

It is an amenable number.

22243188 is an abundant number, since it is smaller than the sum of its proper divisors (34808492).

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

22243188 is a wasteful number, since it uses less digits than its factorization.

22243188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15348 (or 15335 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 22243188 is about 4716.2684401972. The cubic root of 22243188 is about 281.2326100853.

The spelling of 22243188 in words is "twenty-two million, two hundred forty-three thousand, one hundred eighty-eight".