22005288 has 48 divisors (see below), whose sum is σ = 61526400. Its totient is φ = 7097760.

The previous prime is 22005271. The next prime is 22005311. The reversal of 22005288 is 88250022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2698 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (1281800).

Almost surely, 2^22005288 is an apocalyptic number.

It is an amenable number.

22005288 is an abundant number, since it is smaller than the sum of its proper divisors (39521112).

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

22005288 is a wasteful number, since it uses less digits than its factorization.

22005288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902 (or 9895 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 22005288 is about 4690.9794286481. The cubic root of 22005288 is about 280.2263815458.

The spelling of 22005288 in words is "twenty-two million, five thousand, two hundred eighty-eight".