22620439 has 2 divisors, whose sum is σ = 22620440. Its totient is φ = 22620438.

The previous prime is 22620427. The next prime is 22620457. The reversal of 22620439 is 93402622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22620439 - 2⁵ = 22620407 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22620419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11310219 + 11310220.

It is an arithmetic number, because the mean of its divisors is an integer number (11310220).

Almost surely, 2^22620439 is an apocalyptic number.

22620439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22620439 is an equidigital number, since it uses as much as digits as its factorization.

22620439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 22620439 is about 4756.0949317691. The cubic root of 22620439 is about 282.8136344938.

The spelling of 22620439 in words is "twenty-two million, six hundred twenty thousand, four hundred thirty-nine".