195200020 has 24 divisors (see below), whose sum is σ = 410493384. Its totient is φ = 77970816.

The previous prime is 195200017. The next prime is 195200021. The reversal of 195200020 is 20002591.

It can be written as a sum of positive squares in 4 ways, for example, as 34316164 + 160883856 = 5858^2 + 12684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195200021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8694 + ... + 21586.

It is an arithmetic number, because the mean of its divisors is an integer number (17103891).

Almost surely, 2^195200020 is an apocalyptic number.

195200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195200020 is an abundant number, since it is smaller than the sum of its proper divisors (215293364).

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

195200020 is a wasteful number, since it uses less digits than its factorization.

195200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13659 (or 13657 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 195200020 is about 13971.4000730063. The cubic root of 195200020 is about 580.0872044860.

The spelling of 195200020 in words is "one hundred ninety-five million, two hundred thousand, twenty".