404044420422 has 32 divisors (see below), whose sum is σ = 843594766848. Its totient is φ = 128768980736.

The previous prime is 404044420387. The next prime is 404044420457. The reversal of 404044420422 is 224024440404.

It is an interprime number because it is at equal distance from previous prime (404044420387) and next prime (404044420457).

It is a self number, because there is not a number n which added to its sum of digits gives 404044420422.

It is a congruent number.

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, 330378 + ... + 957725.

It is an arithmetic number, because the mean of its divisors is an integer number (26362336464).

Almost surely, 2^404044420422 is an apocalyptic number.

404044420422 is an abundant number, since it is smaller than the sum of its proper divisors (439550346426).

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

404044420422 is a wasteful number, since it uses less digits than its factorization.

404044420422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290404.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 404044420422 its reverse (224024440404), we get a palindrome (628068860826).

The spelling of 404044420422 in words is "four hundred four billion, forty-four million, four hundred twenty thousand, four hundred twenty-two".