195944520 has 32 divisors (see below), whose sum is σ = 587833920. Its totient is φ = 52251840.

The previous prime is 195944519. The next prime is 195944527. The reversal of 195944520 is 25449591.

It is not an unprimeable number, because it can be changed into a prime (195944527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816316 + ... + 816555.

It is an arithmetic number, because the mean of its divisors is an integer number (18369810).

Almost surely, 2^195944520 is an apocalyptic number.

195944520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195944520 is an abundant number, since it is smaller than the sum of its proper divisors (391889400).

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

195944520 is a wasteful number, since it uses less digits than its factorization.

195944520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632885 (or 1632881 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 195944520 is about 13998.0184311923. The cubic root of 195944520 is about 580.8237601175.

The spelling of 195944520 in words is "one hundred ninety-five million, nine hundred forty-four thousand, five hundred twenty".