22418868 has 12 divisors (see below), whose sum is σ = 52310720. Its totient is φ = 7472952.

The previous prime is 22418863. The next prime is 22418873. The reversal of 22418868 is 86881422.

It is an interprime number because it is at equal distance from previous prime (22418863) and next prime (22418873).

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 (22418863) 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, 934108 + ... + 934131.

Almost surely, 2^22418868 is an apocalyptic number.

It is an amenable number.

22418868 is an abundant number, since it is smaller than the sum of its proper divisors (29891852).

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

22418868 is a wasteful number, since it uses less digits than its factorization.

22418868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868246 (or 1868244 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 22418868 is about 4734.8567032171. The cubic root of 22418868 is about 281.9710749468.

The spelling of 22418868 in words is "twenty-two million, four hundred eighteen thousand, eight hundred sixty-eight".