3809808 has 40 divisors (see below), whose sum is σ = 10936800. Its totient is φ = 1269792.

The previous prime is 3809803. The next prime is 3809809. The reversal of 3809808 is 8089083.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3809803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3978 + ... + 4841.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

Almost surely, 2^3809808 is an apocalyptic number.

It is an amenable number.

3809808 is an abundant number, since it is smaller than the sum of its proper divisors (7126992).

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

3809808 is a wasteful number, since it uses less digits than its factorization.

3809808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8836 (or 8824 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 3809808 is about 1951.8729466848. The cubic root of 3809808 is about 156.1832166867.

Subtracting 3809808 from its reverse (8089083), we obtain a triangular number (4279275 = T₂₉₂₅).

The spelling of 3809808 in words is "three million, eight hundred nine thousand, eight hundred eight".