22188669 has 4 divisors (see below), whose sum is σ = 29584896. Its totient is φ = 14792444.

The previous prime is 22188623. The next prime is 22188671. The reversal of 22188669 is 96688122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22188669 - 2¹² = 22184573 is a prime.

It is a super-2 number, since 2×22188669² = 984674063983122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22188669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22188619) 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 3 ways as a sum of consecutive naturals, for example, 3698109 + ... + 3698114.

It is an arithmetic number, because the mean of its divisors is an integer number (7396224).

Almost surely, 2^22188669 is an apocalyptic number.

It is an amenable number.

22188669 is a deficient number, since it is larger than the sum of its proper divisors (7396227).

22188669 is an equidigital number, since it uses as much as digits as its factorization.

22188669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7396226.

The product of its digits is 82944, while the sum is 42.

The square root of 22188669 is about 4710.4850068756. The cubic root of 22188669 is about 281.0026510728.

The spelling of 22188669 in words is "twenty-two million, one hundred eighty-eight thousand, six hundred sixty-nine".