4040400044039 has 2 divisors, whose sum is σ = 4040400044040. Its totient is φ = 4040400044038.

The previous prime is 4040400044029. The next prime is 4040400044071. The reversal of 4040400044039 is 9304400040404.

It is an a-pointer prime, because the next prime (4040400044071) can be obtained adding 4040400044039 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4040400044039 - 2²⁰ = 4040398995463 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 4040400043996 and 4040400044014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4040400044029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020200022019 + 2020200022020.

It is an arithmetic number, because the mean of its divisors is an integer number (2020200022020).

Almost surely, 2^{4040400044039} is an apocalyptic number.

4040400044039 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040400044039 is an equidigital number, since it uses as much as digits as its factorization.

4040400044039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 4040400044039 in words is "four trillion, forty billion, four hundred million, forty-four thousand, thirty-nine".