22570146 has 12 divisors (see below), whose sum is σ = 48902022. Its totient is φ = 7523376.

The previous prime is 22570127. The next prime is 22570147. The reversal of 22570146 is 64107522.

It can be written as a sum of positive squares in only one way, i.e., 17969121 + 4601025 = 4239^2 + 2145^2 .

It is a super-2 number, since 2×22570146² = 1018822980922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22570147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626931 + ... + 626966.

Almost surely, 2^22570146 is an apocalyptic number.

22570146 is an abundant number, since it is smaller than the sum of its proper divisors (26331876).

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

22570146 is a wasteful number, since it uses less digits than its factorization.

22570146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253905 (or 1253902 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22570146 is about 4750.8047739304. The cubic root of 22570146 is about 282.6038817058.

Adding to 22570146 its reverse (64107522), we get a palindrome (86677668).

The spelling of 22570146 in words is "twenty-two million, five hundred seventy thousand, one hundred forty-six".