444144439 has 2 divisors, whose sum is σ = 444144440. Its totient is φ = 444144438.

The previous prime is 444144433. The next prime is 444144461. The reversal of 444144439 is 934441444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444144439 - 2²⁵ = 410590007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444144398 and 444144407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444144433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222072219 + 222072220.

It is an arithmetic number, because the mean of its divisors is an integer number (222072220).

Almost surely, 2^444144439 is an apocalyptic number.

444144439 is a deficient number, since it is larger than the sum of its proper divisors (1).

444144439 is an equidigital number, since it uses as much as digits as its factorization.

444144439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 37.

The square root of 444144439 is about 21074.7346128012. The cubic root of 444144439 is about 762.9710794663.

The spelling of 444144439 in words is "four hundred forty-four million, one hundred forty-four thousand, four hundred thirty-nine".