22564045 has 8 divisors (see below), whose sum is σ = 30945024. Its totient is φ = 15472464.

The previous prime is 22564033. The next prime is 22564067. The reversal of 22564045 is 54046522.

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

It is not a de Polignac number, because 22564045 - 2⁹ = 22563533 is a prime.

It is a super-2 number, since 2×22564045² = 1018272253524050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322309 + ... + 322378.

It is an arithmetic number, because the mean of its divisors is an integer number (3868128).

Almost surely, 2^22564045 is an apocalyptic number.

It is an amenable number.

22564045 is a deficient number, since it is larger than the sum of its proper divisors (8380979).

22564045 is an equidigital number, since it uses as much as digits as its factorization.

22564045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644699.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 22564045 is about 4750.1626287949. The cubic root of 22564045 is about 282.5784155929.

The spelling of 22564045 in words is "twenty-two million, five hundred sixty-four thousand, forty-five".