195959928 has 32 divisors (see below), whose sum is σ = 505704960. Its totient is φ = 63212640.

The previous prime is 195959909. The next prime is 195959941. The reversal of 195959928 is 829959591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130950 + ... + 132437.

It is an arithmetic number, because the mean of its divisors is an integer number (15803280).

Almost surely, 2^195959928 is an apocalyptic number.

It is an amenable number.

195959928 is an abundant number, since it is smaller than the sum of its proper divisors (309745032).

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

195959928 is a wasteful number, since it uses less digits than its factorization.

195959928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263427 (or 263423 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 57.

The square root of 195959928 is about 13998.5687839865. The cubic root of 195959928 is about 580.8389839810.

The spelling of 195959928 in words is "one hundred ninety-five million, nine hundred fifty-nine thousand, nine hundred twenty-eight".