22407439 has 2 divisors, whose sum is σ = 22407440. Its totient is φ = 22407438.

The previous prime is 22407379. The next prime is 22407449. The reversal of 22407439 is 93470422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22407439 - 2⁹ = 22406927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22407439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22407449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11203719 + 11203720.

It is an arithmetic number, because the mean of its divisors is an integer number (11203720).

Almost surely, 2^22407439 is an apocalyptic number.

22407439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22407439 is an equidigital number, since it uses as much as digits as its factorization.

22407439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22407439 is about 4733.6496490552. The cubic root of 22407439 is about 281.9231510998.

The spelling of 22407439 in words is "twenty-two million, four hundred seven thousand, four hundred thirty-nine".