22438563 has 16 divisors (see below), whose sum is σ = 35992320. Its totient is φ = 12146976.

The previous prime is 22438553. The next prime is 22438567. The reversal of 22438563 is 36583422.

It is a happy number.

It is not a de Polignac number, because 22438563 - 2⁸ = 22438307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22438567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27720 + ... + 28517.

It is an arithmetic number, because the mean of its divisors is an integer number (2249520).

Almost surely, 2^22438563 is an apocalyptic number.

22438563 is a deficient number, since it is larger than the sum of its proper divisors (13553757).

22438563 is a wasteful number, since it uses less digits than its factorization.

22438563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56266.

The product of its digits is 34560, while the sum is 33.

The square root of 22438563 is about 4736.9360350336. The cubic root of 22438563 is about 282.0536214115.

The spelling of 22438563 in words is "twenty-two million, four hundred thirty-eight thousand, five hundred sixty-three".