22573864 has 8 divisors (see below), whose sum is σ = 42326010. Its totient is φ = 11286928.

The previous prime is 22573853. The next prime is 22573867. The reversal of 22573864 is 46837522.

It can be written as a sum of positive squares in only one way, i.e., 18404100 + 4169764 = 4290^2 + 2042^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22573867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410859 + ... + 1410874.

Almost surely, 2^22573864 is an apocalyptic number.

It is an amenable number.

22573864 is a deficient number, since it is larger than the sum of its proper divisors (19752146).

22573864 is a wasteful number, since it uses less digits than its factorization.

22573864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821739 (or 2821735 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 22573864 is about 4751.1960599411. The cubic root of 22573864 is about 282.6193987158.

The spelling of 22573864 in words is "twenty-two million, five hundred seventy-three thousand, eight hundred sixty-four".