22805939 has 4 divisors (see below), whose sum is σ = 24560256. Its totient is φ = 21051624.

The previous prime is 22805933. The next prime is 22805969. The reversal of 22805939 is 93950822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22805939 is a prime.

It is a super-2 number, since 2×22805939² = 1040221707343442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22805933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877139 + ... + 877164.

It is an arithmetic number, because the mean of its divisors is an integer number (6140064).

Almost surely, 2^22805939 is an apocalyptic number.

22805939 is a deficient number, since it is larger than the sum of its proper divisors (1754317).

22805939 is a wasteful number, since it uses less digits than its factorization.

22805939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754316.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 22805939 is about 4775.5564073729. The cubic root of 22805939 is about 283.5846064668.

The spelling of 22805939 in words is "twenty-two million, eight hundred five thousand, nine hundred thirty-nine".