22938439 has 2 divisors, whose sum is σ = 22938440. Its totient is φ = 22938438.

The previous prime is 22938431. The next prime is 22938469. The reversal of 22938439 is 93483922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22938439 - 2³ = 22938431 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 (22938431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11469219 + 11469220.

It is an arithmetic number, because the mean of its divisors is an integer number (11469220).

Almost surely, 2^22938439 is an apocalyptic number.

22938439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22938439 is an equidigital number, since it uses as much as digits as its factorization.

22938439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 22938439 is about 4789.4090449658. The cubic root of 22938439 is about 284.1327447614.

The spelling of 22938439 in words is "twenty-two million, nine hundred thirty-eight thousand, four hundred thirty-nine".