256246 has 8 divisors (see below), whose sum is σ = 396864. Its totient is φ = 123960.

The previous prime is 256219. The next prime is 256279. The reversal of 256246 is 642652.

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

It is a self number, because there is not a number n which added to its sum of digits gives 256246.

It is a congruent number.

It is an unprimeable number.

256246 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, 2005 + ... + 2128.

It is an arithmetic number, because the mean of its divisors is an integer number (49608).

2²⁵⁶²⁴⁶ is an apocalyptic number.

256246 is a deficient number, since it is larger than the sum of its proper divisors (140618).

256246 is a wasteful number, since it uses less digits than its factorization.

256246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166.

The product of its digits is 2880, while the sum is 25.

The square root of 256246 is about 506.2074673491. The cubic root of 256246 is about 63.5163741435.

Adding to 256246 its reverse (642652), we get a palindrome (898898).

The spelling of 256246 in words is "two hundred fifty-six thousand, two hundred forty-six".