22505842 has 16 divisors (see below), whose sum is σ = 36498240. Its totient is φ = 10371888.

The previous prime is 22505837. The next prime is 22505869. The reversal of 22505842 is 24850522.

It is a self number, because there is not a number n which added to its sum of digits gives 22505842.

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, 6598 + ... + 9409.

It is an arithmetic number, because the mean of its divisors is an integer number (2281140).

Almost surely, 2^22505842 is an apocalyptic number.

22505842 is a deficient number, since it is larger than the sum of its proper divisors (13992398).

22505842 is a wasteful number, since it uses less digits than its factorization.

22505842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16065.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 22505842 is about 4744.0322511551. The cubic root of 22505842 is about 282.3352400276.

The spelling of 22505842 in words is "twenty-two million, five hundred five thousand, eight hundred forty-two".