195695808 has 336 divisors, whose sum is σ = 689384448. Its totient is φ = 48384000.

The previous prime is 195695807. The next prime is 195695813. The reversal of 195695808 is 808596591.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195695807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3208098 + ... + 3208158.

Almost surely, 2^195695808 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 195695808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344692224).

195695808 is an abundant number, since it is smaller than the sum of its proper divisors (493688640).

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

195695808 is a wasteful number, since it uses less digits than its factorization.

195695808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The square root of 195695808 is about 13989.1317814938. The cubic root of 195695808 is about 580.5779099108.

The spelling of 195695808 in words is "one hundred ninety-five million, six hundred ninety-five thousand, eight hundred eight".