22330457 has 2 divisors, whose sum is σ = 22330458. Its totient is φ = 22330456.

The previous prime is 22330417. The next prime is 22330463. The reversal of 22330457 is 75403322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13868176 + 8462281 = 3724^2 + 2909^2 .

It is a cyclic number.

It is not a de Polignac number, because 22330457 - 2²⁴ = 5553241 is a prime.

It is not a weakly prime, because it can be changed into another prime (22330417) 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, 11165228 + 11165229.

It is an arithmetic number, because the mean of its divisors is an integer number (11165229).

Almost surely, 2^22330457 is an apocalyptic number.

It is an amenable number.

22330457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22330457 is an equidigital number, since it uses as much as digits as its factorization.

22330457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 22330457 is about 4725.5112950875. The cubic root of 22330457 is about 281.5999264551.

Adding to 22330457 its reverse (75403322), we get a palindrome (97733779).

The spelling of 22330457 in words is "twenty-two million, three hundred thirty thousand, four hundred fifty-seven".