204256 has 24 divisors (see below), whose sum is σ = 433944. Its totient is φ = 94080.

The previous prime is 204251. The next prime is 204299. The reversal of 204256 is 652402.

204256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (18081).

2²⁰⁴²⁵⁶ is an apocalyptic number.

204256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216972).

204256 is an abundant number, since it is smaller than the sum of its proper divisors (229688).

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

204256 is a wasteful number, since it uses less digits than its factorization.

204256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204256 is about 451.9468995358. The cubic root of 204256 is about 58.8922672534.

Adding to 204256 its reverse (652402), we get a palindrome (856658).

The spelling of 204256 in words is "two hundred four thousand, two hundred fifty-six".