22570628 has 12 divisors (see below), whose sum is σ = 41822172. Its totient is φ = 10621440.

The previous prime is 22570621. The next prime is 22570631. The reversal of 22570628 is 82607522.

It can be written as a sum of positive squares in 2 ways, for example, as 20502784 + 2067844 = 4528^2 + 1438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22570594 and 22570603.

It is not an unprimeable number, because it can be changed into a prime (22570621) 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, 165893 + ... + 166028.

It is an arithmetic number, because the mean of its divisors is an integer number (3485181).

Almost surely, 2^22570628 is an apocalyptic number.

It is an amenable number.

22570628 is a deficient number, since it is larger than the sum of its proper divisors (19251544).

22570628 is a wasteful number, since it uses less digits than its factorization.

22570628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331942 (or 331940 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 22570628 is about 4750.8555019070. The cubic root of 22570628 is about 282.6058934208.

The spelling of 22570628 in words is "twenty-two million, five hundred seventy thousand, six hundred twenty-eight".