404344443405 has 128 divisors (see below), whose sum is σ = 788494417920. Its totient is φ = 172832486400.

The previous prime is 404344443397. The next prime is 404344443463. The reversal of 404344443405 is 504344443404.

It is not a de Polignac number, because 404344443405 - 2³ = 404344443397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 49908855 + ... + 49916955.

It is an arithmetic number, because the mean of its divisors is an integer number (6160112640).

Almost surely, 2^404344443405 is an apocalyptic number.

It is an amenable number.

404344443405 is a deficient number, since it is larger than the sum of its proper divisors (384149974515).

404344443405 is a wasteful number, since it uses less digits than its factorization.

404344443405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8459.

The product of its (nonzero) digits is 737280, while the sum is 39.

Adding to 404344443405 its reverse (504344443404), we get a palindrome (908688886809).

Subtracting 404344443405 from its reverse (504344443404), we obtain a palindrome (99999999999).

The spelling of 404344443405 in words is "four hundred four billion, three hundred forty-four million, four hundred forty-three thousand, four hundred five".