4440439 has 2 divisors, whose sum is σ = 4440440. Its totient is φ = 4440438.

The previous prime is 4440437. The next prime is 4440461. The reversal of 4440439 is 9340444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4440439 - 2¹ = 4440437 is a prime.

Together with 4440437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4440437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2220219 + 2220220.

It is an arithmetic number, because the mean of its divisors is an integer number (2220220).

Almost surely, 2^4440439 is an apocalyptic number.

4440439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4440439 is an equidigital number, since it uses as much as digits as its factorization.

4440439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4440439 is about 2107.2349180858. The cubic root of 4440439 is about 164.3647320664.

The spelling of 4440439 in words is "four million, four hundred forty thousand, four hundred thirty-nine".