8000404004 has 24 divisors (see below), whose sum is σ = 14241572856. Its totient is φ = 3931488000.

The previous prime is 8000403997. The next prime is 8000404033. The reversal of 8000404004 is 4004040008.

It can be written as a sum of positive squares in 4 ways, for example, as 150798400 + 7849605604 = 12280^2 + 88598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309914 + ... + 334734.

It is an arithmetic number, because the mean of its divisors is an integer number (593398869).

Almost surely, 2^8000404004 is an apocalyptic number.

It is an amenable number.

8000404004 is a deficient number, since it is larger than the sum of its proper divisors (6241168852).

8000404004 is a wasteful number, since it uses less digits than its factorization.

8000404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26207 (or 26205 counting only the distinct ones).

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

The square root of 8000404004 is about 89444.9775224970. The cubic root of 8000404004 is about 2000.0336664333.

The spelling of 8000404004 in words is "eight billion, four hundred four thousand, four".