195438 has 8 divisors (see below), whose sum is σ = 390888. Its totient is φ = 65144.

The previous prime is 195427. The next prime is 195443. The reversal of 195438 is 834591.

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

195438 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 16281 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (48861).

2¹⁹⁵⁴³⁸ is an apocalyptic number.

195438 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.

195438 is a wasteful number, since it uses less digits than its factorization.

195438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32578.

The product of its digits is 4320, while the sum is 30.

The square root of 195438 is about 442.0837024818. The cubic root of 195438 is about 58.0322848399.

The spelling of 195438 in words is "one hundred ninety-five thousand, four hundred thirty-eight".