22429943 has 2 divisors, whose sum is σ = 22429944. Its totient is φ = 22429942.

The previous prime is 22429931. The next prime is 22429949. The reversal of 22429943 is 34992422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22429943 - 2¹⁸ = 22167799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22429949) 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, 11214971 + 11214972.

It is an arithmetic number, because the mean of its divisors is an integer number (11214972).

Almost surely, 2^22429943 is an apocalyptic number.

22429943 is a deficient number, since it is larger than the sum of its proper divisors (1).

22429943 is an equidigital number, since it uses as much as digits as its factorization.

22429943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 22429943 is about 4736.0260767863. The cubic root of 22429943 is about 282.0174988722.

The spelling of 22429943 in words is "twenty-two million, four hundred twenty-nine thousand, nine hundred forty-three".