195491828 has 24 divisors (see below), whose sum is σ = 403597824. Its totient is φ = 81079200.

The previous prime is 195491773. The next prime is 195491843. The reversal of 195491828 is 828194591.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111743 + ... + 113478.

It is an arithmetic number, because the mean of its divisors is an integer number (16816576).

Almost surely, 2^195491828 is an apocalyptic number.

It is an amenable number.

195491828 is an abundant number, since it is smaller than the sum of its proper divisors (208105996).

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

195491828 is a wasteful number, since it uses less digits than its factorization.

195491828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225263 (or 225261 counting only the distinct ones).

The product of its digits is 207360, while the sum is 47.

The square root of 195491828 is about 13981.8392209323. The cubic root of 195491828 is about 580.3761214760.

The spelling of 195491828 in words is "one hundred ninety-five million, four hundred ninety-one thousand, eight hundred twenty-eight".