195331398 has 16 divisors (see below), whose sum is σ = 396494400. Its totient is φ = 64138536.

The previous prime is 195331337. The next prime is 195331417. The reversal of 195331398 is 893133591.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242548 + ... + 243351.

It is an arithmetic number, because the mean of its divisors is an integer number (24780900).

Almost surely, 2^195331398 is an apocalyptic number.

195331398 is an abundant number, since it is smaller than the sum of its proper divisors (201163002).

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

195331398 is a wasteful number, since it uses less digits than its factorization.

195331398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485971.

The product of its digits is 87480, while the sum is 42.

The square root of 195331398 is about 13976.1009584218. The cubic root of 195331398 is about 580.2173165039.

The spelling of 195331398 in words is "one hundred ninety-five million, three hundred thirty-one thousand, three hundred ninety-eight".