404442004442 has 12 divisors (see below), whose sum is σ = 705710028330. Its totient is φ = 173332287576.

The previous prime is 404442004429. The next prime is 404442004487. The reversal of 404442004442 is 244400244404.

It can be written as a sum of positive squares in only one way, i.e., 381848607721 + 22593396721 = 617939^2 + 150311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404442004399 and 404442004408.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2063479517 + ... + 2063479712.

Almost surely, 2^404442004442 is an apocalyptic number.

404442004442 is a deficient number, since it is larger than the sum of its proper divisors (301268023888).

404442004442 is a wasteful number, since it uses less digits than its factorization.

404442004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126959245 (or 4126959238 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 404442004442 its reverse (244400244404), we get a palindrome (648842248846).

The spelling of 404442004442 in words is "four hundred four billion, four hundred forty-two million, four thousand, four hundred forty-two".