404400424404 has 24 divisors (see below), whose sum is σ = 984627120960. Its totient is φ = 128939265664.

The previous prime is 404400424391. The next prime is 404400424423. The reversal of 404400424404 is 404424004404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732609189 + ... + 732609740.

It is an arithmetic number, because the mean of its divisors is an integer number (41026130040).

Almost surely, 2^404400424404 is an apocalyptic number.

It is an amenable number.

404400424404 is an abundant number, since it is smaller than the sum of its proper divisors (580226696556).

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

404400424404 is a wasteful number, since it uses less digits than its factorization.

404400424404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465218959 (or 1465218957 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 404400424404 its reverse (404424004404), we get a palindrome (808824428808).

The spelling of 404400424404 in words is "four hundred four billion, four hundred million, four hundred twenty-four thousand, four hundred four".