22434439 has 2 divisors, whose sum is σ = 22434440. Its totient is φ = 22434438.

The previous prime is 22434437. The next prime is 22434457. The reversal of 22434439 is 93443422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22434439 - 2¹ = 22434437 is a prime.

Together with 22434437, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22434439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22434431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11217219 + 11217220.

It is an arithmetic number, because the mean of its divisors is an integer number (11217220).

Almost surely, 2^22434439 is an apocalyptic number.

22434439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22434439 is an equidigital number, since it uses as much as digits as its factorization.

22434439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

The square root of 22434439 is about 4736.5007125514. The cubic root of 22434439 is about 282.0363407386.

The spelling of 22434439 in words is "twenty-two million, four hundred thirty-four thousand, four hundred thirty-nine".