195206988 has 48 divisors (see below), whose sum is σ = 507669120. Its totient is φ = 58017024.

The previous prime is 195206981. The next prime is 195207041. The reversal of 195206988 is 889602591.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (195206981) 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, 21306 + ... + 29057.

It is an arithmetic number, because the mean of its divisors is an integer number (10576440).

Almost surely, 2^195206988 is an apocalyptic number.

It is an amenable number.

195206988 is an abundant number, since it is smaller than the sum of its proper divisors (312462132).

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

195206988 is a wasteful number, since it uses less digits than its factorization.

195206988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50406 (or 50404 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 195206988 is about 13971.6494373428. The cubic root of 195206988 is about 580.0941068069.

The spelling of 195206988 in words is "one hundred ninety-five million, two hundred six thousand, nine hundred eighty-eight".