22570 has 16 divisors (see below), whose sum is σ = 42408. Its totient is φ = 8640.

The previous prime is 22567. The next prime is 22571. The reversal of 22570 is 7522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16641 + 5929 = 129^2 + 77^2 .

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (22571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340 + ... + 400.

2²²⁵⁷⁰ is an apocalyptic number.

22570 is a deficient number, since it is larger than the sum of its proper divisors (19838).

22570 is a wasteful number, since it uses less digits than its factorization.

22570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 22570 is about 150.2331521336. The cubic root of 22570 is about 28.2603272343.

The spelling of 22570 in words is "twenty-two thousand, five hundred seventy".