22897570 has 16 divisors (see below), whose sum is σ = 41892408. Its totient is φ = 9008640.

The previous prime is 22897547. The next prime is 22897573. The reversal of 22897570 is 7579822.

It can be written as a sum of positive squares in 4 ways, for example, as 11015761 + 11881809 = 3319^2 + 3447^2 .

It is not an unprimeable number, because it can be changed into a prime (22897573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18159 + ... + 19378.

Almost surely, 2^22897570 is an apocalyptic number.

22897570 is a deficient number, since it is larger than the sum of its proper divisors (18994838).

22897570 is a wasteful number, since it uses less digits than its factorization.

22897570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37605.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 22897570 is about 4785.1405413007. The cubic root of 22897570 is about 283.9638997293.

The spelling of 22897570 in words is "twenty-two million, eight hundred ninety-seven thousand, five hundred seventy".