404000840008 has 16 divisors (see below), whose sum is σ = 757620905580. Its totient is φ = 201968598528.

The previous prime is 404000840003. The next prime is 404000840063. The reversal of 404000840008 is 800048000404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 375060706084 + 28940133924 = 612422^2 + 170118^2 .

It is a super-2 number, since 2×404000840008² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404000840003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3923685 + ... + 4025332.

Almost surely, 2^404000840008 is an apocalyptic number.

It is an amenable number.

404000840008 is a deficient number, since it is larger than the sum of its proper divisors (353620065572).

404000840008 is a wasteful number, since it uses less digits than its factorization.

404000840008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955376 (or 7955372 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The spelling of 404000840008 in words is "four hundred four billion, eight hundred forty thousand, eight".