404404220004 has 12 divisors (see below), whose sum is σ = 943609846704. Its totient is φ = 134801406664.

The previous prime is 404404219963. The next prime is 404404220041. The reversal of 404404220004 is 400022404404.

It is a tau number, because it is divible by the number of its divisors (12).

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, 16850175822 + ... + 16850175845.

It is an arithmetic number, because the mean of its divisors is an integer number (78634153892).

Almost surely, 2^404404220004 is an apocalyptic number.

It is an amenable number.

404404220004 is an abundant number, since it is smaller than the sum of its proper divisors (539205626700).

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

404404220004 is a wasteful number, since it uses less digits than its factorization.

404404220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33700351674 (or 33700351672 counting only the distinct ones).

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

Adding to 404404220004 its reverse (400022404404), we get a palindrome (804426624408).

The spelling of 404404220004 in words is "four hundred four billion, four hundred four million, two hundred twenty thousand, four".