8400404808 has 32 divisors (see below), whose sum is σ = 23334458400. Its totient is φ = 2800134864.

The previous prime is 8400404801. The next prime is 8400404821. The reversal of 8400404808 is 8084040048.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8400404801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19445166 + ... + 19445597.

It is an arithmetic number, because the mean of its divisors is an integer number (729201825).

Almost surely, 2^8400404808 is an apocalyptic number.

It is an amenable number.

8400404808 is an abundant number, since it is smaller than the sum of its proper divisors (14934053592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8400404808 is a wasteful number, since it uses less digits than its factorization.

8400404808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38890778 (or 38890768 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 8400404808 is about 91653.7222812036. The cubic root of 8400404808 is about 2032.8253675001.

The spelling of 8400404808 in words is "eight billion, four hundred million, four hundred four thousand, eight hundred eight".