3440440439 has 2 divisors, whose sum is σ = 3440440440. Its totient is φ = 3440440438.

The previous prime is 3440440429. The next prime is 3440440469. The reversal of 3440440439 is 9340440443.

It is a weak prime.

It is an emirp because it is prime and its reverse (9340440443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3440440439 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3440440399 and 3440440408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440440429) 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, 1720220219 + 1720220220.

It is an arithmetic number, because the mean of its divisors is an integer number (1720220220).

Almost surely, 2^3440440439 is an apocalyptic number.

3440440439 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440440439 is an equidigital number, since it uses as much as digits as its factorization.

3440440439 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3440440439 is about 58655.2677855962. The cubic root of 3440440439 is about 1509.6328857694.

The spelling of 3440440439 in words is "three billion, four hundred forty million, four hundred forty thousand, four hundred thirty-nine".