4400400040039 has 2 divisors, whose sum is σ = 4400400040040. Its totient is φ = 4400400040038.

The previous prime is 4400400040027. The next prime is 4400400040117. The reversal of 4400400040039 is 9300400040044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4400400040039 - 2⁷ = 4400400039911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4400400039989 and 4400400040016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4400400070039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200200020019 + 2200200020020.

It is an arithmetic number, because the mean of its divisors is an integer number (2200200020020).

Almost surely, 2^{4400400040039} is an apocalyptic number.

4400400040039 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400400040039 is an equidigital number, since it uses as much as digits as its factorization.

4400400040039 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 4400400040039 in words is "four trillion, four hundred billion, four hundred million, forty thousand, thirty-nine".