404022040004 has 36 divisors (see below), whose sum is σ = 778133944812. Its totient is φ = 183415784640.

The previous prime is 404022039947. The next prime is 404022040057. The reversal of 404022040004 is 400040220404.

It can be written as a sum of positive squares in 2 ways, for example, as 90312270400 + 313709769604 = 300520^2 + 560098^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137939 + ... + 909434.

Almost surely, 2^404022040004 is an apocalyptic number.

404022040004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

404022040004 is a deficient number, since it is larger than the sum of its proper divisors (374111904808).

404022040004 is a wasteful number, since it uses less digits than its factorization.

404022040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048196 (or 1048183 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 404022040004 its reverse (400040220404), we get a palindrome (804062260408).

The spelling of 404022040004 in words is "four hundred four billion, twenty-two million, forty thousand, four".