22332389 has 2 divisors, whose sum is σ = 22332390. Its totient is φ = 22332388.

The previous prime is 22332383. The next prime is 22332419. The reversal of 22332389 is 98323322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22137025 + 195364 = 4705^2 + 442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22332389 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22332383) 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 as a sum of consecutive naturals, namely, 11166194 + 11166195.

It is an arithmetic number, because the mean of its divisors is an integer number (11166195).

Almost surely, 2^22332389 is an apocalyptic number.

It is an amenable number.

22332389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22332389 is an equidigital number, since it uses as much as digits as its factorization.

22332389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 22332389 is about 4725.7157129899. The cubic root of 22332389 is about 281.6080474319.

The spelling of 22332389 in words is "twenty-two million, three hundred thirty-two thousand, three hundred eighty-nine".