404222424020 has 12 divisors (see below), whose sum is σ = 848867090484. Its totient is φ = 161688969600.

The previous prime is 404222424007. The next prime is 404222424031. The reversal of 404222424020 is 20424222404.

It can be written as a sum of positive squares in 2 ways, for example, as 79126314436 + 325096109584 = 281294^2 + 570172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10105560581 + ... + 10105560620.

It is an arithmetic number, because the mean of its divisors is an integer number (70738924207).

Almost surely, 2^404222424020 is an apocalyptic number.

It is an amenable number.

404222424020 is an abundant number, since it is smaller than the sum of its proper divisors (444644666464).

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

404222424020 is a wasteful number, since it uses less digits than its factorization.

404222424020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211121210 (or 20211121208 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404222424020 its reverse (20424222404), we get a palindrome (424646646424).

The spelling of 404222424020 in words is "four hundred four billion, two hundred twenty-two million, four hundred twenty-four thousand, twenty".