22189005 has 16 divisors (see below), whose sum is σ = 39447360. Its totient is φ = 11834064.

The previous prime is 22189001. The next prime is 22189009. The reversal of 22189005 is 50098122.

It is an interprime number because it is at equal distance from previous prime (22189001) and next prime (22189009).

It is not a de Polignac number, because 22189005 - 2² = 22189001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22189005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189001) 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, 82047 + ... + 82316.

It is an arithmetic number, because the mean of its divisors is an integer number (2465460).

Almost surely, 2^22189005 is an apocalyptic number.

It is an amenable number.

22189005 is a deficient number, since it is larger than the sum of its proper divisors (17258355).

22189005 is a wasteful number, since it uses less digits than its factorization.

22189005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164377 (or 164371 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 22189005 is about 4710.5206718578. The cubic root of 22189005 is about 281.0040694606.

The spelling of 22189005 in words is "twenty-two million, one hundred eighty-nine thousand, five".