22718969 has 8 divisors (see below), whose sum is σ = 27961920. Its totient is φ = 17975376.

The previous prime is 22718959. The next prime is 22719013. The reversal of 22718969 is 96981722.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22718969 is a prime.

It is a super-2 number, since 2×22718969² = 1032303104845922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22718909) 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, 124739 + ... + 124920.

It is an arithmetic number, because the mean of its divisors is an integer number (3495240).

Almost surely, 2^22718969 is an apocalyptic number.

It is an amenable number.

22718969 is a deficient number, since it is larger than the sum of its proper divisors (5242951).

22718969 is a wasteful number, since it uses less digits than its factorization.

22718969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249679.

The product of its digits is 108864, while the sum is 44.

The square root of 22718969 is about 4766.4419644007. The cubic root of 22718969 is about 283.2236658234.

The spelling of 22718969 in words is "twenty-two million, seven hundred eighteen thousand, nine hundred sixty-nine".