404040444405 has 64 divisors (see below), whose sum is σ = 737435301120. Its totient is φ = 187137847296.

The previous prime is 404040444397. The next prime is 404040444419. The reversal of 404040444405 is 504444040404.

It is not a de Polignac number, because 404040444405 - 2³ = 404040444397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8904666 + ... + 8949924.

It is an arithmetic number, because the mean of its divisors is an integer number (11522426580).

Almost surely, 2^404040444405 is an apocalyptic number.

It is an amenable number.

404040444405 is a deficient number, since it is larger than the sum of its proper divisors (333394856715).

404040444405 is a wasteful number, since it uses less digits than its factorization.

404040444405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47990.

The product of its (nonzero) digits is 81920, while the sum is 33.

Adding to 404040444405 its reverse (504444040404), we get a palindrome (908484484809).

The spelling of 404040444405 in words is "four hundred four billion, forty million, four hundred forty-four thousand, four hundred five".