404000039999 has 2 divisors, whose sum is σ = 404000040000. Its totient is φ = 404000039998.

The previous prime is 404000039977. The next prime is 404000040061. The reversal of 404000039999 is 999930000404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404000039999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404000039909) 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, 202000019999 + 202000020000.

It is an arithmetic number, because the mean of its divisors is an integer number (202000020000).

Almost surely, 2^404000039999 is an apocalyptic number.

404000039999 is a deficient number, since it is larger than the sum of its proper divisors (1).

404000039999 is an equidigital number, since it uses as much as digits as its factorization.

404000039999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 47.

The spelling of 404000039999 in words is "four hundred four billion, thirty-nine thousand, nine hundred ninety-nine".