195389934 has 16 divisors (see below), whose sum is σ = 391740240. Its totient is φ = 64969920.

The previous prime is 195389917. The next prime is 195389947. The reversal of 195389934 is 439983591.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37357 + ... + 42264.

It is an arithmetic number, because the mean of its divisors is an integer number (24483765).

Almost surely, 2^195389934 is an apocalyptic number.

195389934 is an abundant number, since it is smaller than the sum of its proper divisors (196350306).

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

195389934 is a wasteful number, since it uses less digits than its factorization.

195389934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80035.

The product of its digits is 1049760, while the sum is 51.

The square root of 195389934 is about 13978.1949478464. The cubic root of 195389934 is about 580.2752696527.

The spelling of 195389934 in words is "one hundred ninety-five million, three hundred eighty-nine thousand, nine hundred thirty-four".