404422204020 has 96 divisors (see below), whose sum is σ = 1141030800000. Its totient is φ = 107023578624.

The previous prime is 404422204009. The next prime is 404422204027. The reversal of 404422204020 is 20402224404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404422204027) 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 31 ways as a sum of consecutive naturals, for example, 9965731 + ... + 10006229.

It is an arithmetic number, because the mean of its divisors is an integer number (11885737500).

Almost surely, 2^404422204020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404422204020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570515400000).

404422204020 is an abundant number, since it is smaller than the sum of its proper divisors (736608595980).

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

404422204020 is a wasteful number, since it uses less digits than its factorization.

404422204020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41777 (or 41775 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 404422204020 its reverse (20402224404), we get a palindrome (424824428424).

The spelling of 404422204020 in words is "four hundred four billion, four hundred twenty-two million, two hundred four thousand, twenty".