195242688 has 168 divisors, whose sum is σ = 601016832. Its totient is φ = 60383232.

The previous prime is 195242669. The next prime is 195242701. The reversal of 195242688 is 886242591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243506 + ... + 1243662.

Almost surely, 2^195242688 is an apocalyptic number.

195242688 is a gapful number since it is divisible by the number (18) 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 195242688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300508416).

195242688 is an abundant number, since it is smaller than the sum of its proper divisors (405774144).

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

195242688 is a wasteful number, since it uses less digits than its factorization.

195242688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 306 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 195242688 is about 13972.9269661013. The cubic root of 195242688 is about 580.1294677290.

The spelling of 195242688 in words is "one hundred ninety-five million, two hundred forty-two thousand, six hundred eighty-eight".