404424204420 has 24 divisors (see below), whose sum is σ = 1132387772544. Its totient is φ = 107846454496.

The previous prime is 404424204323. The next prime is 404424204439. The reversal of 404424204420 is 24402424404.

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

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, 3370201644 + ... + 3370201763.

It is an arithmetic number, because the mean of its divisors is an integer number (47182823856).

Almost surely, 2^404424204420 is an apocalyptic number.

It is an amenable number.

404424204420 is an abundant number, since it is smaller than the sum of its proper divisors (727963568124).

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

404424204420 is a wasteful number, since it uses less digits than its factorization.

404424204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740403419 (or 6740403417 counting only the distinct ones).

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

Adding to 404424204420 its reverse (24402424404), we get a palindrome (428826628824).

The spelling of 404424204420 in words is "four hundred four billion, four hundred twenty-four million, two hundred four thousand, four hundred twenty".