256846 has 8 divisors (see below), whose sum is σ = 388080. Its totient is φ = 127488.

The previous prime is 256831. The next prime is 256873. The reversal of 256846 is 648652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

256846 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51 + ... + 718.

It is an arithmetic number, because the mean of its divisors is an integer number (48510).

2²⁵⁶⁸⁴⁶ is an apocalyptic number.

256846 is a deficient number, since it is larger than the sum of its proper divisors (131234).

256846 is a wasteful number, since it uses less digits than its factorization.

256846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its digits is 11520, while the sum is 31.

The square root of 256846 is about 506.7997632201. The cubic root of 256846 is about 63.5659100301.

The spelling of 256846 in words is "two hundred fifty-six thousand, eight hundred forty-six".