198950 has 24 divisors (see below), whose sum is σ = 388368. Its totient is φ = 75680.

The previous prime is 198943. The next prime is 198953. The reversal of 198950 is 59891.

198950 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198950² = 79162205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198953) by changing a digit.

198950 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 11 ways as a sum of consecutive naturals, for example, 1064 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (16182).

2¹⁹⁸⁹⁵⁰ is an apocalyptic number.

198950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198950 is a deficient number, since it is larger than the sum of its proper divisors (189418).

198950 is a wasteful number, since it uses less digits than its factorization.

198950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 198950 is about 446.0381149633. The cubic root of 198950 is about 58.3778345231.

The spelling of 198950 in words is "one hundred ninety-eight thousand, nine hundred fifty".