22573666 has 8 divisors (see below), whose sum is σ = 34036524. Its totient is φ = 11228160.

The previous prime is 22573643. The next prime is 22573679. The reversal of 22573666 is 66637522.

It can be written as a sum of positive squares in 2 ways, for example, as 21893041 + 680625 = 4679^2 + 825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 28855 + ... + 29626.

Almost surely, 2^22573666 is an apocalyptic number.

22573666 is a deficient number, since it is larger than the sum of its proper divisors (11462858).

22573666 is a wasteful number, since it uses less digits than its factorization.

22573666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58676.

The product of its digits is 90720, while the sum is 37.

The square root of 22573666 is about 4751.1752230369. The cubic root of 22573666 is about 282.6185724091.

The spelling of 22573666 in words is "twenty-two million, five hundred seventy-three thousand, six hundred sixty-six".