198456 has 16 divisors (see below), whose sum is σ = 496200. Its totient is φ = 66144.

The previous prime is 198439. The next prime is 198461. The reversal of 198456 is 654891.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

198456 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, 4111 + ... + 4158.

2¹⁹⁸⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

198456 is an abundant number, since it is smaller than the sum of its proper divisors (297744).

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

198456 is a wasteful number, since it uses less digits than its factorization.

198456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278 (or 8274 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 198456 is about 445.4840064469. The cubic root of 198456 is about 58.3294763890.

The spelling of 198456 in words is "one hundred ninety-eight thousand, four hundred fifty-six".