22168689 has 8 divisors (see below), whose sum is σ = 30511872. Its totient is φ = 14302320.

The previous prime is 22168669. The next prime is 22168703. The reversal of 22168689 is 98686122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-22168689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22168689.

It is not an unprimeable number, because it can be changed into a prime (22168669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119094 + ... + 119279.

It is an arithmetic number, because the mean of its divisors is an integer number (3813984).

Almost surely, 2^22168689 is an apocalyptic number.

It is an amenable number.

22168689 is a deficient number, since it is larger than the sum of its proper divisors (8343183).

22168689 is a wasteful number, since it uses less digits than its factorization.

22168689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238407.

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

The square root of 22168689 is about 4708.3637285155. The cubic root of 22168689 is about 280.9182818992.

The spelling of 22168689 in words is "twenty-two million, one hundred sixty-eight thousand, six hundred eighty-nine".