22022688 has 24 divisors (see below), whose sum is σ = 57809808. Its totient is φ = 7340864.

The previous prime is 22022681. The next prime is 22022717. The reversal of 22022688 is 88622022.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (22022681) 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, 114606 + ... + 114797.

It is an arithmetic number, because the mean of its divisors is an integer number (2408742).

Almost surely, 2^22022688 is an apocalyptic number.

It is an amenable number.

22022688 is an abundant number, since it is smaller than the sum of its proper divisors (35787120).

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

22022688 is a wasteful number, since it uses less digits than its factorization.

22022688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229416 (or 229408 counting only the distinct ones).

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

The square root of 22022688 is about 4692.8336855252. The cubic root of 22022688 is about 280.3002221978.

The spelling of 22022688 in words is "twenty-two million, twenty-two thousand, six hundred eighty-eight".