22190268 has 12 divisors (see below), whose sum is σ = 51777320. Its totient is φ = 7396752.

The previous prime is 22190261. The next prime is 22190297. The reversal of 22190268 is 86209122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22190261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924583 + ... + 924606.

Almost surely, 2^22190268 is an apocalyptic number.

It is an amenable number.

22190268 is an abundant number, since it is smaller than the sum of its proper divisors (29587052).

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

22190268 is a wasteful number, since it uses less digits than its factorization.

22190268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849196 (or 1849194 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 22190268 is about 4710.6547315633. The cubic root of 22190268 is about 281.0094009511.

The spelling of 22190268 in words is "twenty-two million, one hundred ninety thousand, two hundred sixty-eight".