22042863 has 12 divisors (see below), whose sum is σ = 33712848. Its totient is φ = 13830720.

The previous prime is 22042849. The next prime is 22042879. The reversal of 22042863 is 36824022.

It is not a de Polignac number, because 22042863 - 2⁴ = 22042847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71883 + ... + 72188.

It is an arithmetic number, because the mean of its divisors is an integer number (2809404).

Almost surely, 2^22042863 is an apocalyptic number.

22042863 is a deficient number, since it is larger than the sum of its proper divisors (11669985).

22042863 is a wasteful number, since it uses less digits than its factorization.

22042863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144094 (or 144091 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 22042863 is about 4694.9827475721. The cubic root of 22042863 is about 280.3857904837.

Adding to 22042863 its reverse (36824022), we get a palindrome (58866885).

The spelling of 22042863 in words is "twenty-two million, forty-two thousand, eight hundred sixty-three".