404330020424 has 32 divisors (see below), whose sum is σ = 844635254400. Its totient is φ = 179876022720.

The previous prime is 404330020417. The next prime is 404330020447. The reversal of 404330020424 is 424020033404.

It is a junction number, because it is equal to n+sod(n) for n = 404330020393 and 404330020402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48875219 + ... + 48883490.

It is an arithmetic number, because the mean of its divisors is an integer number (26394851700).

Almost surely, 2^404330020424 is an apocalyptic number.

404330020424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

404330020424 is an abundant number, since it is smaller than the sum of its proper divisors (440305233976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404330020424 is a wasteful number, since it uses less digits than its factorization.

404330020424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97758773 (or 97758769 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 404330020424 its reverse (424020033404), we get a palindrome (828350053828).

The spelling of 404330020424 in words is "four hundred four billion, three hundred thirty million, twenty thousand, four hundred twenty-four".