320040440039 has 2 divisors, whose sum is σ = 320040440040. Its totient is φ = 320040440038.

The previous prime is 320040440023. The next prime is 320040440077. The reversal of 320040440039 is 930044040023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320040440039 - 2⁴ = 320040440023 is a prime.

It is a super-3 number, since 3×320040440039³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320040439993 and 320040440020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320040440009) 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, 160020220019 + 160020220020.

It is an arithmetic number, because the mean of its divisors is an integer number (160020220020).

Almost surely, 2^320040440039 is an apocalyptic number.

320040440039 is a deficient number, since it is larger than the sum of its proper divisors (1).

320040440039 is an equidigital number, since it uses as much as digits as its factorization.

320040440039 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 spelling of 320040440039 in words is "three hundred twenty billion, forty million, four hundred forty thousand, thirty-nine".