404242340424 has 64 divisors (see below), whose sum is σ = 1088469379200. Its totient is φ = 124368016896.

The previous prime is 404242340419. The next prime is 404242340431. The reversal of 404242340424 is 424043242404.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2838012 + ... + 2977044.

It is an arithmetic number, because the mean of its divisors is an integer number (17007334050).

Almost surely, 2^404242340424 is an apocalyptic number.

It is an amenable number.

404242340424 is an abundant number, since it is smaller than the sum of its proper divisors (684227038776).

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

404242340424 is a wasteful number, since it uses less digits than its factorization.

404242340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148374 (or 148370 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 33.

Adding to 404242340424 its reverse (424043242404), we get a palindrome (828285582828).

The spelling of 404242340424 in words is "four hundred four billion, two hundred forty-two million, three hundred forty thousand, four hundred twenty-four".