22442393 has 2 divisors, whose sum is σ = 22442394. Its totient is φ = 22442392.

The previous prime is 22442389. The next prime is 22442423. The reversal of 22442393 is 39324422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15904144 + 6538249 = 3988^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 22442393 - 2² = 22442389 is a prime.

It is a super-2 number, since 2×22442393² = 1007322007132898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22442383) 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, 11221196 + 11221197.

It is an arithmetic number, because the mean of its divisors is an integer number (11221197).

Almost surely, 2^22442393 is an apocalyptic number.

It is an amenable number.

22442393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22442393 is an equidigital number, since it uses as much as digits as its factorization.

22442393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

The square root of 22442393 is about 4737.3402875453. The cubic root of 22442393 is about 282.0696682488.

The spelling of 22442393 in words is "twenty-two million, four hundred forty-two thousand, three hundred ninety-three".