404004412311420 has 24 divisors (see below), whose sum is σ = 1131212354472144. Its totient is φ = 107734509949696.

The previous prime is 404004412311319. The next prime is 404004412311473. The reversal of 404004412311420 is 24113214400404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3366703435869 + ... + 3366703435988.

It is an arithmetic number, because the mean of its divisors is an integer number (47133848103006).

Almost surely, 2^{404004412311420} is an apocalyptic number.

It is an amenable number.

404004412311420 is an abundant number, since it is smaller than the sum of its proper divisors (727207942160724).

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

404004412311420 is a wasteful number, since it uses less digits than its factorization.

404004412311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733406871869 (or 6733406871867 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 404004412311420 its reverse (24113214400404), we get a palindrome (428117626711824).

The spelling of 404004412311420 in words is "four hundred four trillion, four billion, four hundred twelve million, three hundred eleven thousand, four hundred twenty".