199960 has 16 divisors (see below), whose sum is σ = 450000. Its totient is φ = 79968.

The previous prime is 199933. The next prime is 199961. The reversal of 199960 is 69991.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199961) 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 in 3 ways as a sum of consecutive naturals, for example, 2460 + ... + 2539.

It is an arithmetic number, because the mean of its divisors is an integer number (28125).

2¹⁹⁹⁹⁶⁰ is an apocalyptic number.

199960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199960 is an abundant number, since it is smaller than the sum of its proper divisors (250040).

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

199960 is a wasteful number, since it uses less digits than its factorization.

199960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 199960 is about 447.1688719041. The cubic root of 199960 is about 58.4764558140.

The spelling of 199960 in words is "one hundred ninety-nine thousand, nine hundred sixty".