404440220004 has 12 divisors (see below), whose sum is σ = 943693846704. Its totient is φ = 134813406664.

The previous prime is 404440219951. The next prime is 404440220021. The reversal of 404440220004 is 400022044404.

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, 16851675822 + ... + 16851675845.

It is an arithmetic number, because the mean of its divisors is an integer number (78641153892).

Almost surely, 2^404440220004 is an apocalyptic number.

It is an amenable number.

404440220004 is an abundant number, since it is smaller than the sum of its proper divisors (539253626700).

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

404440220004 is a wasteful number, since it uses less digits than its factorization.

404440220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33703351674 (or 33703351672 counting only the distinct ones).

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

Adding to 404440220004 its reverse (400022044404), we get a palindrome (804462264408).

The spelling of 404440220004 in words is "four hundred four billion, four hundred forty million, two hundred twenty thousand, four".