404021434112543 has 24 divisors (see below), whose sum is σ = 457029003629952. Its totient is φ = 356323956756768.

The previous prime is 404021434112477. The next prime is 404021434112573. The reversal of 404021434112543 is 345211434120404.

It is a de Polignac number, because none of the positive numbers 2^k-404021434112543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404021434112497 and 404021434112506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404021434112573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55424921 + ... + 62289362.

It is an arithmetic number, because the mean of its divisors is an integer number (19042875151248).

Almost surely, 2^{404021434112543} is an apocalyptic number.

404021434112543 is a deficient number, since it is larger than the sum of its proper divisors (53007569517409).

404021434112543 is a wasteful number, since it uses less digits than its factorization.

404021434112543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117715215 (or 117715202 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 404021434112543 its reverse (345211434120404), we get a palindrome (749232868232947).

The spelling of 404021434112543 in words is "four hundred four trillion, twenty-one billion, four hundred thirty-four million, one hundred twelve thousand, five hundred forty-three".