195644 has 12 divisors (see below), whose sum is σ = 348600. Its totient is φ = 96048.

The previous prime is 195599. The next prime is 195659. The reversal of 195644 is 446591.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 650.

It is an arithmetic number, because the mean of its divisors is an integer number (29050).

2¹⁹⁵⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

195644 is a deficient number, since it is larger than the sum of its proper divisors (152956).

195644 is a wasteful number, since it uses less digits than its factorization.

195644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 890 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 195644 is about 442.3166286723. The cubic root of 195644 is about 58.0526671826.

The spelling of 195644 in words is "one hundred ninety-five thousand, six hundred forty-four".