404001003424 has 12 divisors (see below), whose sum is σ = 795376975554. Its totient is φ = 202000501696.

The previous prime is 404001003377. The next prime is 404001003481. The reversal of 404001003424 is 424300100404.

It can be written as a sum of positive squares in only one way, i.e., 316226275600 + 87774727824 = 562340^2 + 296268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404001003395 and 404001003404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312515647 + ... + 6312515710.

Almost surely, 2^404001003424 is an apocalyptic number.

It is an amenable number.

404001003424 is a deficient number, since it is larger than the sum of its proper divisors (391375972130).

404001003424 is a wasteful number, since it uses less digits than its factorization.

404001003424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625031367 (or 12625031359 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 404001003424 its reverse (424300100404), we get a palindrome (828301103828).

The spelling of 404001003424 in words is "four hundred four billion, one million, three thousand, four hundred twenty-four".