195831960 has 128 divisors (see below), whose sum is σ = 617103360. Its totient is φ = 49651200.

The previous prime is 195831947. The next prime is 195831967. The reversal of 195831960 is 69138591.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195831967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226489 + ... + 227351.

It is an arithmetic number, because the mean of its divisors is an integer number (4821120).

Almost surely, 2^195831960 is an apocalyptic number.

195831960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195831960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308551680).

195831960 is an abundant number, since it is smaller than the sum of its proper divisors (421271400).

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

195831960 is a wasteful number, since it uses less digits than its factorization.

195831960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 195831960 is about 13993.9972845503. The cubic root of 195831960 is about 580.7125210703.

The spelling of 195831960 in words is "one hundred ninety-five million, eight hundred thirty-one thousand, nine hundred sixty".