444340439 has 2 divisors, whose sum is σ = 444340440. Its totient is φ = 444340438.

The previous prime is 444340423. The next prime is 444340447. The reversal of 444340439 is 934043444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444340439 - 2⁴ = 444340423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444340399 and 444340408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444340459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222170219 + 222170220.

It is an arithmetic number, because the mean of its divisors is an integer number (222170220).

Almost surely, 2^444340439 is an apocalyptic number.

444340439 is a deficient number, since it is larger than the sum of its proper divisors (1).

444340439 is an equidigital number, since it uses as much as digits as its factorization.

444340439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 444340439 is about 21079.3842177612. The cubic root of 444340439 is about 763.0832954681.

The spelling of 444340439 in words is "four hundred forty-four million, three hundred forty thousand, four hundred thirty-nine".