404220424424 has 16 divisors (see below), whose sum is σ = 768295670820. Its totient is φ = 199341578880.

The previous prime is 404220424423. The next prime is 404220424427. The reversal of 404220424424 is 424424022404.

It can be written as a sum of positive squares in 2 ways, for example, as 398628076900 + 5592347524 = 631370^2 + 74782^2 .

It is not an unprimeable number, because it can be changed into a prime (404220424423) 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, 346078547 + ... + 346079714.

Almost surely, 2^404220424424 is an apocalyptic number.

It is an amenable number.

404220424424 is a deficient number, since it is larger than the sum of its proper divisors (364075246396).

404220424424 is a wasteful number, since it uses less digits than its factorization.

404220424424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692158340 (or 692158336 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 404220424424 its reverse (424424022404), we get a palindrome (828644446828).

The spelling of 404220424424 in words is "four hundred four billion, two hundred twenty million, four hundred twenty-four thousand, four hundred twenty-four".