22005873 has 24 divisors (see below), whose sum is σ = 32628960. Its totient is φ = 14287680.

The previous prime is 22005859. The next prime is 22005911. The reversal of 22005873 is 37850022.

It is not a de Polignac number, because 22005873 - 2⁸ = 22005617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22005833) 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 23 ways as a sum of consecutive naturals, for example, 66318 + ... + 66648.

It is an arithmetic number, because the mean of its divisors is an integer number (1359540).

Almost surely, 2^22005873 is an apocalyptic number.

It is an amenable number.

22005873 is a deficient number, since it is larger than the sum of its proper divisors (10623087).

22005873 is a wasteful number, since it uses less digits than its factorization.

22005873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22005873 is about 4691.0417819499. The cubic root of 22005873 is about 280.2288647517.

Adding to 22005873 its reverse (37850022), we get a palindrome (59855895).

The spelling of 22005873 in words is "twenty-two million, five thousand, eight hundred seventy-three".