195888 has 80 divisors (see below), whose sum is σ = 642816. Its totient is φ = 49920.

The previous prime is 195887. The next prime is 195893. The reversal of 195888 is 888591.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (195883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3670 + ... + 3722.

2¹⁹⁵⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321408).

195888 is an abundant number, since it is smaller than the sum of its proper divisors (446928).

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

195888 is a wasteful number, since it uses less digits than its factorization.

195888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 76 counting only the distinct ones).

The product of its digits is 23040, while the sum is 39.

The square root of 195888 is about 442.5923632418. The cubic root of 195888 is about 58.0767908737.

The spelling of 195888 in words is "one hundred ninety-five thousand, eight hundred eighty-eight".