195368820 has 48 divisors (see below), whose sum is σ = 564684288. Its totient is φ = 50417280.

The previous prime is 195368779. The next prime is 195368827. The reversal of 195368820 is 28863591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195368827) 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, 50659 + ... + 54378.

It is an arithmetic number, because the mean of its divisors is an integer number (11764256).

Almost surely, 2^195368820 is an apocalyptic number.

195368820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195368820 is an abundant number, since it is smaller than the sum of its proper divisors (369315468).

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

195368820 is a wasteful number, since it uses less digits than its factorization.

195368820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105080 (or 105078 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 195368820 is about 13977.4396797124. The cubic root of 195368820 is about 580.2543672224.

The spelling of 195368820 in words is "one hundred ninety-five million, three hundred sixty-eight thousand, eight hundred twenty".