404404000424 has 16 divisors (see below), whose sum is σ = 758265189300. Its totient is φ = 202199949952.

The previous prime is 404404000423. The next prime is 404404000453. The reversal of 404404000424 is 424000404404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 359421832324 + 44982168100 = 599518^2 + 212090^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404404000393 and 404404000402.

It is not an unprimeable number, because it can be changed into a prime (404404000423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876572 + ... + 1255860.

Almost surely, 2^404404000424 is an apocalyptic number.

It is an amenable number.

404404000424 is a deficient number, since it is larger than the sum of its proper divisors (353861188876).

404404000424 is a wasteful number, since it uses less digits than its factorization.

404404000424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512572 (or 512568 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404404000424 its reverse (424000404404), we get a palindrome (828404404828).

The spelling of 404404000424 in words is "four hundred four billion, four hundred four million, four hundred twenty-four", and thus it is an aban number.