195723408 has 80 divisors (see below), whose sum is σ = 534697920. Its totient is φ = 61521408.

The previous prime is 195723403. The next prime is 195723419. The reversal of 195723408 is 804327591.

It is not an unprimeable number, because it can be changed into a prime (195723403) 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, 288766 + ... + 289442.

It is an arithmetic number, because the mean of its divisors is an integer number (6683724).

Almost surely, 2^195723408 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 195723408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267348960).

195723408 is an abundant number, since it is smaller than the sum of its proper divisors (338974512).

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

195723408 is a wasteful number, since it uses less digits than its factorization.

195723408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 195723408 is about 13990.1182268057. The cubic root of 195723408 is about 580.6052026042.

The spelling of 195723408 in words is "one hundred ninety-five million, seven hundred twenty-three thousand, four hundred eight".