22660905 has 16 divisors (see below), whose sum is σ = 37142784. Its totient is φ = 11790720.

The previous prime is 22660903. The next prime is 22660931. The reversal of 22660905 is 50906622.

It is not a de Polignac number, because 22660905 - 2¹ = 22660903 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22660903) 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 15 ways as a sum of consecutive naturals, for example, 17809 + ... + 19038.

It is an arithmetic number, because the mean of its divisors is an integer number (2321424).

Almost surely, 2^22660905 is an apocalyptic number.

It is an amenable number.

22660905 is a deficient number, since it is larger than the sum of its proper divisors (14481879).

22660905 is a wasteful number, since it uses less digits than its factorization.

22660905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36896.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 22660905 is about 4760.3471512065. The cubic root of 22660905 is about 282.9821770377.

The spelling of 22660905 in words is "twenty-two million, six hundred sixty thousand, nine hundred five".