22900405 has 16 divisors (see below), whose sum is σ = 30124224. Its totient is φ = 16574080.

The previous prime is 22900403. The next prime is 22900417. The reversal of 22900405 is 50400922.

It is a happy number.

It is not a de Polignac number, because 22900405 - 2¹ = 22900403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22900403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11922 + ... + 13708.

It is an arithmetic number, because the mean of its divisors is an integer number (1882764).

Almost surely, 2^22900405 is an apocalyptic number.

It is an amenable number.

22900405 is a deficient number, since it is larger than the sum of its proper divisors (7223819).

22900405 is a wasteful number, since it uses less digits than its factorization.

22900405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 22900405 is about 4785.4367616760. The cubic root of 22900405 is about 283.9756186502.

The spelling of 22900405 in words is "twenty-two million, nine hundred thousand, four hundred five".