195868634 has 24 divisors (see below), whose sum is σ = 319210560. Its totient is φ = 90097488.

The previous prime is 195868627. The next prime is 195868637. The reversal of 195868634 is 436868591.

It is not an unprimeable number, because it can be changed into a prime (195868637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123257 + ... + 124835.

It is an arithmetic number, because the mean of its divisors is an integer number (13300440).

Almost surely, 2^195868634 is an apocalyptic number.

195868634 is a deficient number, since it is larger than the sum of its proper divisors (123341926).

195868634 is a wasteful number, since it uses less digits than its factorization.

195868634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974 (or 1961 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 195868634 is about 13995.3075707538. The cubic root of 195868634 is about 580.7487693614.

The spelling of 195868634 in words is "one hundred ninety-five million, eight hundred sixty-eight thousand, six hundred thirty-four".