8381808 has 30 divisors (see below), whose sum is σ = 23457824. Its totient is φ = 2793888.

The previous prime is 8381803. The next prime is 8381809. The reversal of 8381808 is 8081838.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 (8381801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28960 + ... + 29247.

Almost surely, 2^8381808 is an apocalyptic number.

It is an amenable number.

8381808 is an abundant number, since it is smaller than the sum of its proper divisors (15076016).

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

8381808 is a wasteful number, since it uses less digits than its factorization.

8381808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58221 (or 58212 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 8381808 is about 2895.1352300022. The cubic root of 8381808 is about 203.1324170231.

The spelling of 8381808 in words is "eight million, three hundred eighty-one thousand, eight hundred eight".