22342889 has 2 divisors, whose sum is σ = 22342890. Its totient is φ = 22342888.

The previous prime is 22342877. The next prime is 22342921. The reversal of 22342889 is 98824322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16974400 + 5368489 = 4120^2 + 2317^2 .

It is a cyclic number.

It is not a de Polignac number, because 22342889 - 2⁸ = 22342633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22342819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11171444 + 11171445.

It is an arithmetic number, because the mean of its divisors is an integer number (11171445).

Almost surely, 2^22342889 is an apocalyptic number.

It is an amenable number.

22342889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22342889 is an equidigital number, since it uses as much as digits as its factorization.

22342889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 22342889 is about 4726.8265252704. The cubic root of 22342889 is about 281.6521749875.

The spelling of 22342889 in words is "twenty-two million, three hundred forty-two thousand, eight hundred eighty-nine".