22681433 has 2 divisors, whose sum is σ = 22681434. Its totient is φ = 22681432.

The previous prime is 22681397. The next prime is 22681457. The reversal of 22681433 is 33418622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15429184 + 7252249 = 3928^2 + 2693^2 .

It is a cyclic number.

It is not a de Polignac number, because 22681433 - 2⁸ = 22681177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22681396 and 22681405.

It is not a weakly prime, because it can be changed into another prime (22683433) 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, 11340716 + 11340717.

It is an arithmetic number, because the mean of its divisors is an integer number (11340717).

Almost surely, 2^22681433 is an apocalyptic number.

It is an amenable number.

22681433 is a deficient number, since it is larger than the sum of its proper divisors (1).

22681433 is an equidigital number, since it uses as much as digits as its factorization.

22681433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 22681433 is about 4762.5028083981. The cubic root of 22681433 is about 283.0676002944.

The spelling of 22681433 in words is "twenty-two million, six hundred eighty-one thousand, four hundred thirty-three".