22289969 has 8 divisors (see below), whose sum is σ = 24139752. Its totient is φ = 20459520.

The previous prime is 22289963. The next prime is 22289977. The reversal of 22289969 is 96998222.

It can be written as a sum of positive squares in 4 ways, for example, as 620944 + 21669025 = 788^2 + 4655^2 .

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-22289969 is a prime.

It is a super-2 number, since 2×22289969² = 993685436041922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22289963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2384 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (3017469).

Almost surely, 2^22289969 is an apocalyptic number.

It is an amenable number.

22289969 is a deficient number, since it is larger than the sum of its proper divisors (1849783).

22289969 is a wasteful number, since it uses less digits than its factorization.

22289969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667.

The product of its digits is 279936, while the sum is 47.

The square root of 22289969 is about 4721.2253706003. The cubic root of 22289969 is about 281.4296311567.

The spelling of 22289969 in words is "twenty-two million, two hundred eighty-nine thousand, nine hundred sixty-nine".