195840330 has 128 divisors (see below), whose sum is σ = 564019200. Its totient is φ = 42577920.

The previous prime is 195840329. The next prime is 195840343. The reversal of 195840330 is 33048591.

It is a junction number, because it is equal to n+sod(n) for n = 195840291 and 195840300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 435946 + ... + 436394.

It is an arithmetic number, because the mean of its divisors is an integer number (4406400).

Almost surely, 2^195840330 is an apocalyptic number.

195840330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 195840330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282009600).

195840330 is an abundant number, since it is smaller than the sum of its proper divisors (368178870).

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

195840330 is a wasteful number, since it uses less digits than its factorization.

195840330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 195840330 is about 13994.2963381515. The cubic root of 195840330 is about 580.7207943105.

The spelling of 195840330 in words is "one hundred ninety-five million, eight hundred forty thousand, three hundred thirty".