404240244424 has 16 divisors (see below), whose sum is σ = 758309198220. Its totient is φ = 202024458240.

The previous prime is 404240244413. The next prime is 404240244449. The reversal of 404240244424 is 424442042404.

It can be written as a sum of positive squares in 2 ways, for example, as 374213592900 + 30026651524 = 611730^2 + 173282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 404240244424.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11940037 + ... + 11973844.

Almost surely, 2^404240244424 is an apocalyptic number.

It is an amenable number.

404240244424 is a deficient number, since it is larger than the sum of its proper divisors (354068953796).

404240244424 is a wasteful number, since it uses less digits than its factorization.

404240244424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23916000 (or 23915996 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 404240244424 its reverse (424442042404), we get a palindrome (828682286828).

The spelling of 404240244424 in words is "four hundred four billion, two hundred forty million, two hundred forty-four thousand, four hundred twenty-four".