404344321242423 has 16 divisors (see below), whose sum is σ = 542018840748000. Its totient is φ = 268120193587200.

The previous prime is 404344321242403. The next prime is 404344321242457. The reversal of 404344321242423 is 324242123443404.

It is not a de Polignac number, because 404344321242423 - 2¹⁸ = 404344320980279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404344321242403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481117858 + ... + 481957551.

It is an arithmetic number, because the mean of its divisors is an integer number (33876177546750).

Almost surely, 2^{404344321242423} is an apocalyptic number.

404344321242423 is a deficient number, since it is larger than the sum of its proper divisors (137674519505577).

404344321242423 is a wasteful number, since it uses less digits than its factorization.

404344321242423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963076162.

The product of its (nonzero) digits is 1769472, while the sum is 42.

Adding to 404344321242423 its reverse (324242123443404), we get a palindrome (728586444685827).

The spelling of 404344321242423 in words is "four hundred four trillion, three hundred forty-four billion, three hundred twenty-one million, two hundred forty-two thousand, four hundred twenty-three".