440324039 has 2 divisors, whose sum is σ = 440324040. Its totient is φ = 440324038.

The previous prime is 440324033. The next prime is 440324041. The reversal of 440324039 is 930423044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440324039 is a prime.

Together with 440324041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440324033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220162019 + 220162020.

It is an arithmetic number, because the mean of its divisors is an integer number (220162020).

Almost surely, 2^440324039 is an apocalyptic number.

440324039 is a deficient number, since it is larger than the sum of its proper divisors (1).

440324039 is an equidigital number, since it uses as much as digits as its factorization.

440324039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 440324039 is about 20983.8995184403. The cubic root of 440324039 is about 760.7771592015. Note that the first 3 decimals are identical.

The spelling of 440324039 in words is "four hundred forty million, three hundred twenty-four thousand, thirty-nine".