404440044439 has 2 divisors, whose sum is σ = 404440044440. Its totient is φ = 404440044438.

The previous prime is 404440044347. The next prime is 404440044461. The reversal of 404440044439 is 934440044404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404440044439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404440044469) 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, 202220022219 + 202220022220.

It is an arithmetic number, because the mean of its divisors is an integer number (202220022220).

Almost surely, 2^404440044439 is an apocalyptic number.

404440044439 is a deficient number, since it is larger than the sum of its proper divisors (1).

404440044439 is an equidigital number, since it uses as much as digits as its factorization.

404440044439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 404440044439 in words is "four hundred four billion, four hundred forty million, forty-four thousand, four hundred thirty-nine".