22564366 has 8 divisors (see below), whose sum is σ = 36923544. Its totient is φ = 10256520.

The previous prime is 22564363. The next prime is 22564387. The reversal of 22564366 is 66346522.

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

It is a super-2 number, since 2×22564366² = 1018301225963912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22564361) 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 in 3 ways as a sum of consecutive naturals, for example, 512805 + ... + 512848.

It is an arithmetic number, because the mean of its divisors is an integer number (4615443).

Almost surely, 2^22564366 is an apocalyptic number.

22564366 is a deficient number, since it is larger than the sum of its proper divisors (14359178).

22564366 is a wasteful number, since it uses less digits than its factorization.

22564366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025666.

The product of its digits is 51840, while the sum is 34.

The square root of 22564366 is about 4750.1964169916. The cubic root of 22564366 is about 282.5797555897.

The spelling of 22564366 in words is "twenty-two million, five hundred sixty-four thousand, three hundred sixty-six".