404004531523144 has 16 divisors (see below), whose sum is σ = 758541932492220. Its totient is φ = 201726682858560.

The previous prime is 404004531523093. The next prime is 404004531523171. The reversal of 404004531523144 is 441325135400404.

It can be written as a sum of positive squares in 2 ways, for example, as 282075719912100 + 121928811611044 = 16795110^2 + 11042138^2 .

It is a super-2 number, since 2×404004531523144² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404004531523097 and 404004531523106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34447856647 + ... + 34447868374.

Almost surely, 2^{404004531523144} is an apocalyptic number.

It is an amenable number.

404004531523144 is a deficient number, since it is larger than the sum of its proper divisors (354537400969076).

404004531523144 is a wasteful number, since it uses less digits than its factorization.

404004531523144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68895725760 (or 68895725756 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 404004531523144 its reverse (441325135400404), we get a palindrome (845329666923548).

The spelling of 404004531523144 in words is "four hundred four trillion, four billion, five hundred thirty-one million, five hundred twenty-three thousand, one hundred forty-four".