404402220004 has 12 divisors (see below), whose sum is σ = 713966752044. Its totient is φ = 200411719424.

The previous prime is 404402219999. The next prime is 404402220017. The reversal of 404402220004 is 400022204404.

It can be written as a sum of positive squares in 2 ways, for example, as 149458013604 + 254944206400 = 386598^2 + 504920^2 .

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, 447347137 + ... + 447348040.

It is an arithmetic number, because the mean of its divisors is an integer number (59497229337).

Almost surely, 2^404402220004 is an apocalyptic number.

It is an amenable number.

404402220004 is a deficient number, since it is larger than the sum of its proper divisors (309564532040).

404402220004 is a wasteful number, since it uses less digits than its factorization.

404402220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894695294 (or 894695292 counting only the distinct ones).

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

Adding to 404402220004 its reverse (400022204404), we get a palindrome (804424424408).

The spelling of 404402220004 in words is "four hundred four billion, four hundred two million, two hundred twenty thousand, four".