22306369 has 2 divisors, whose sum is σ = 22306370. Its totient is φ = 22306368.

The previous prime is 22306331. The next prime is 22306373. The reversal of 22306369 is 96360322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18835600 + 3470769 = 4340^2 + 1863^2 .

It is a cyclic number.

It is not a de Polignac number, because 22306369 - 2⁷ = 22306241 is a prime.

It is a super-2 number, since 2×22306369² = 995148195928322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22306369.

It is not a weakly prime, because it can be changed into another prime (22306309) 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 as a sum of consecutive naturals, namely, 11153184 + 11153185.

It is an arithmetic number, because the mean of its divisors is an integer number (11153185).

Almost surely, 2^22306369 is an apocalyptic number.

It is an amenable number.

22306369 is a deficient number, since it is larger than the sum of its proper divisors (1).

22306369 is an equidigital number, since it uses as much as digits as its factorization.

22306369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 22306369 is about 4722.9618884763. The cubic root of 22306369 is about 281.4986355066.

The spelling of 22306369 in words is "twenty-two million, three hundred six thousand, three hundred sixty-nine".