8000400404 has 12 divisors (see below), whose sum is σ = 14483483700. Its totient is φ = 3862262208.

The previous prime is 8000400377. The next prime is 8000400409. The reversal of 8000400404 is 4040040008.

It can be written as a sum of positive squares in 2 ways, for example, as 5378755600 + 2621644804 = 73340^2 + 51202^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8000400409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34484369 + ... + 34484600.

It is an arithmetic number, because the mean of its divisors is an integer number (1206956975).

Almost surely, 2^8000400404 is an apocalyptic number.

It is an amenable number.

8000400404 is a deficient number, since it is larger than the sum of its proper divisors (6483083296).

8000400404 is a wasteful number, since it uses less digits than its factorization.

8000400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68969002 (or 68969000 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 8000400404 is about 89444.9573983911. The cubic root of 8000400404 is about 2000.0333664433.

The spelling of 8000400404 in words is "eight billion, four hundred thousand, four hundred four".