8093840 has 20 divisors (see below), whose sum is σ = 18818364. Its totient is φ = 3237504.

The previous prime is 8093809. The next prime is 8093873. The reversal of 8093840 is 483908.

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 1763584 = 2516^2 + 1328^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8093797 and 8093806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50507 + ... + 50666.

Almost surely, 2^8093840 is an apocalyptic number.

8093840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8093840 is an abundant number, since it is smaller than the sum of its proper divisors (10724524).

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

8093840 is a wasteful number, since it uses less digits than its factorization.

8093840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101186 (or 101180 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8093840 is about 2844.9674866332. The cubic root of 8093840 is about 200.7789621510.

The spelling of 8093840 in words is "eight million, ninety-three thousand, eight hundred forty".