22805105 has 16 divisors (see below), whose sum is σ = 28491264. Its totient is φ = 17509440.

The previous prime is 22805087. The next prime is 22805131. The reversal of 22805105 is 50150822.

It is not a de Polignac number, because 22805105 - 2¹⁰ = 22804081 is a prime.

It is a super-2 number, since 2×22805105² = 1040145628122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11540 + ... + 13370.

It is an arithmetic number, because the mean of its divisors is an integer number (1780704).

Almost surely, 2^22805105 is an apocalyptic number.

It is an amenable number.

22805105 is a deficient number, since it is larger than the sum of its proper divisors (5686159).

22805105 is a wasteful number, since it uses less digits than its factorization.

22805105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 22805105 is about 4775.4690869065. The cubic root of 22805105 is about 283.5811495830.

Adding to 22805105 its reverse (50150822), we get a palindrome (72955927).

The spelling of 22805105 in words is "twenty-two million, eight hundred five thousand, one hundred five".