404340344039 has 2 divisors, whose sum is σ = 404340344040. Its totient is φ = 404340344038.

The previous prime is 404340343991. The next prime is 404340344047. The reversal of 404340344039 is 930443043404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404340344039 - 2⁸ = 404340343783 is a prime.

It is a super-2 number, since 2×404340344039² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404340343993 and 404340344011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404340334039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202170172019 + 202170172020.

It is an arithmetic number, because the mean of its divisors is an integer number (202170172020).

Almost surely, 2^404340344039 is an apocalyptic number.

404340344039 is a deficient number, since it is larger than the sum of its proper divisors (1).

404340344039 is an equidigital number, since it uses as much as digits as its factorization.

404340344039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 38.

The spelling of 404340344039 in words is "four hundred four billion, three hundred forty million, three hundred forty-four thousand, thirty-nine".