404402220220 has 96 divisors (see below), whose sum is σ = 898067520000. Its totient is φ = 152541543168.

The previous prime is 404402220203. The next prime is 404402220251. The reversal of 404402220220 is 22022204404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404402220191 and 404402220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84441586 + ... + 84446374.

It is an arithmetic number, because the mean of its divisors is an integer number (9354870000).

Almost surely, 2^404402220220 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 404402220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449033760000).

404402220220 is an abundant number, since it is smaller than the sum of its proper divisors (493665299780).

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

404402220220 is a wasteful number, since it uses less digits than its factorization.

404402220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 404402220220 its reverse (22022204404), we get a palindrome (426424424624).

The spelling of 404402220220 in words is "four hundred four billion, four hundred two million, two hundred twenty thousand, two hundred twenty".