195298878 has 8 divisors (see below), whose sum is σ = 390597768. Its totient is φ = 65099624.

The previous prime is 195298849. The next prime is 195298879. The reversal of 195298878 is 878892591.

It is a sphenic number, since it is the product of 3 distinct primes.

195298878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195298879) 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 3 ways as a sum of consecutive naturals, for example, 16274901 + ... + 16274912.

It is an arithmetic number, because the mean of its divisors is an integer number (48824721).

Almost surely, 2^195298878 is an apocalyptic number.

195298878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

195298878 is a wasteful number, since it uses less digits than its factorization.

195298878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32549818.

The product of its digits is 2903040, while the sum is 57.

The square root of 195298878 is about 13974.9374953879. The cubic root of 195298878 is about 580.1851153071.

The spelling of 195298878 in words is "one hundred ninety-five million, two hundred ninety-eight thousand, eight hundred seventy-eight".