256326 has 32 divisors (see below), whose sum is σ = 622080. Its totient is φ = 68736.

The previous prime is 256313. The next prime is 256337. The reversal of 256326 is 623652.

It is a junction number, because it is equal to n+sod(n) for n = 256296 and 256305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2²⁵⁶³²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311040).

256326 is an abundant number, since it is smaller than the sum of its proper divisors (365754).

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

256326 is a wasteful number, since it uses less digits than its factorization.

256326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its digits is 2160, while the sum is 24.

The square root of 256326 is about 506.2864801671. The cubic root of 256326 is about 63.5229833930.

Adding to 256326 its reverse (623652), we get a palindrome (879978).

The spelling of 256326 in words is "two hundred fifty-six thousand, three hundred twenty-six".