13944439 has 2 divisors, whose sum is σ = 13944440. Its totient is φ = 13944438.

The previous prime is 13944407. The next prime is 13944481. The reversal of 13944439 is 93444931.

13944439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13944439 - 2⁵ = 13944407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13944398 and 13944407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13944839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972219 + 6972220.

It is an arithmetic number, because the mean of its divisors is an integer number (6972220).

Almost surely, 2^13944439 is an apocalyptic number.

13944439 is a deficient number, since it is larger than the sum of its proper divisors (1).

13944439 is an equidigital number, since it uses as much as digits as its factorization.

13944439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 13944439 is about 3734.2253547423. The cubic root of 13944439 is about 240.6949705775.

The spelling of 13944439 in words is "thirteen million, nine hundred forty-four thousand, four hundred thirty-nine".