256230 has 64 divisors (see below), whose sum is σ = 745920. Its totient is φ = 62208.

The previous prime is 256219. The next prime is 256279. The reversal of 256230 is 32652.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3474 + ... + 3546.

It is an arithmetic number, because the mean of its divisors is an integer number (11655).

2²⁵⁶²³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372960).

256230 is an abundant number, since it is smaller than the sum of its proper divisors (489690).

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

256230 is a wasteful number, since it uses less digits than its factorization.

256230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 256230 is about 506.1916633055. The cubic root of 256230 is about 63.5150521285.

Adding to 256230 its reverse (32652), we get a palindrome (288882).

The spelling of 256230 in words is "two hundred fifty-six thousand, two hundred thirty".