195506840 has 32 divisors (see below), whose sum is σ = 449254080. Its totient is φ = 76538112.

The previous prime is 195506833. The next prime is 195506849. The reversal of 195506840 is 48605591.

195506840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 195506794 and 195506803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195506849) 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, 50117 + ... + 53876.

It is an arithmetic number, because the mean of its divisors is an integer number (14039190).

Almost surely, 2^195506840 is an apocalyptic number.

195506840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195506840 is an abundant number, since it is smaller than the sum of its proper divisors (253747240).

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

195506840 is a wasteful number, since it uses less digits than its factorization.

195506840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104051 (or 104047 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 195506840 is about 13982.3760498708. The cubic root of 195506840 is about 580.3909769705.

The spelling of 195506840 in words is "one hundred ninety-five million, five hundred six thousand, eight hundred forty".