404400422242 has 16 divisors (see below), whose sum is σ = 633083325120. Its totient is φ = 193375668112.

The previous prime is 404400422221. The next prime is 404400422249. The reversal of 404400422242 is 242224004404.

It is a self number, because there is not a number n which added to its sum of digits gives 404400422242.

It is not an unprimeable number, because it can be changed into a prime (404400422249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483517 + ... + 1021072.

It is an arithmetic number, because the mean of its divisors is an integer number (39567707820).

Almost surely, 2^404400422242 is an apocalyptic number.

404400422242 is a deficient number, since it is larger than the sum of its proper divisors (228682902878).

404400422242 is a wasteful number, since it uses less digits than its factorization.

404400422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510457.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 404400422242 its reverse (242224004404), we get a palindrome (646624426646).

The spelling of 404400422242 in words is "four hundred four billion, four hundred million, four hundred twenty-two thousand, two hundred forty-two".