8340256 has 24 divisors (see below), whose sum is σ = 16498944. Its totient is φ = 4150080.

The previous prime is 8340247. The next prime is 8340257. The reversal of 8340256 is 6520438.

It is not an unprimeable number, because it can be changed into a prime (8340257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7921 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (687456).

Almost surely, 2^8340256 is an apocalyptic number.

8340256 is the 1827-th centered pentagonal number.

It is an amenable number.

8340256 is a deficient number, since it is larger than the sum of its proper divisors (8158688).

8340256 is a wasteful number, since it uses less digits than its factorization.

8340256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 8340256 is about 2887.9501380737. The cubic root of 8340256 is about 202.7961910567.

The spelling of 8340256 in words is "eight million, three hundred forty thousand, two hundred fifty-six".