8404031808 has 42 divisors (see below), whose sum is σ = 24088641434. Its totient is φ = 2801343744.

The previous prime is 8404031773. The next prime is 8404031809. The reversal of 8404031808 is 8081304048.

It can be written as a sum of positive squares in only one way, i.e., 7577354304 + 826677504 = 87048^2 + 28752^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404031809) 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 5 ways as a sum of consecutive naturals, for example, 7294591 + ... + 7295742.

Almost surely, 2^8404031808 is an apocalyptic number.

It is an amenable number.

8404031808 is an abundant number, since it is smaller than the sum of its proper divisors (15684609626).

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

8404031808 is a wasteful number, since it uses less digits than its factorization.

8404031808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14590351 (or 14590338 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 8404031808 is about 91673.5065763277. The cubic root of 8404031808 is about 2033.1178929553.

The spelling of 8404031808 in words is "eight billion, four hundred four million, thirty-one thousand, eight hundred eight".