320014439 has 2 divisors, whose sum is σ = 320014440. Its totient is φ = 320014438.

The previous prime is 320014427. The next prime is 320014463. The reversal of 320014439 is 934410023.

It is a weak prime.

It is an emirp because it is prime and its reverse (934410023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320014439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320014469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160007219 + 160007220.

It is an arithmetic number, because the mean of its divisors is an integer number (160007220).

Almost surely, 2^320014439 is an apocalyptic number.

320014439 is a deficient number, since it is larger than the sum of its proper divisors (1).

320014439 is an equidigital number, since it uses as much as digits as its factorization.

320014439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 320014439 is about 17888.9473977649. The cubic root of 320014439 is about 684.0006661587. Note that the first 3 decimals are identical.

The spelling of 320014439 in words is "three hundred twenty million, fourteen thousand, four hundred thirty-nine".