195720900 has 72 divisors (see below), whose sum is σ = 596107680. Its totient is φ = 49443840.

The previous prime is 195720883. The next prime is 195720923. The reversal of 195720900 is 9027591.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11469 + ... + 22868.

Almost surely, 2^195720900 is an apocalyptic number.

195720900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195720900 is an abundant number, since it is smaller than the sum of its proper divisors (400386780).

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

195720900 is a wasteful number, since it uses less digits than its factorization.

195720900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34373 (or 34366 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 195720900 is about 13990.0285918221. The cubic root of 195720900 is about 580.6027226350.

The spelling of 195720900 in words is "one hundred ninety-five million, seven hundred twenty thousand, nine hundred".