198256 has 10 divisors (see below), whose sum is σ = 384152. Its totient is φ = 99120.

The previous prime is 198251. The next prime is 198257. The reversal of 198256 is 652891.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6180 + ... + 6211.

2¹⁹⁸²⁵⁶ is an apocalyptic number.

198256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198256 is a deficient number, since it is larger than the sum of its proper divisors (185896).

198256 is a wasteful number, since it uses less digits than its factorization.

198256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12399 (or 12393 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 198256 is about 445.2594749132. The cubic root of 198256 is about 58.3098753752.

It can be divided in two parts, 198 and 256, that added together give a palindrome (454).

The spelling of 198256 in words is "one hundred ninety-eight thousand, two hundred fifty-six".