195940 has 24 divisors (see below), whose sum is σ = 419832. Its totient is φ = 76800.

The previous prime is 195931. The next prime is 195967. The reversal of 195940 is 49591.

195940 = T₃₁₁ + T₃₁₂ + ... + T₃₁₄.

It can be written as a sum of positive squares in 4 ways, for example, as 60516 + 135424 = 246^2 + 368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195899 and 195908.

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 7 ways as a sum of consecutive naturals, for example, 1890 + ... + 1990.

It is an arithmetic number, because the mean of its divisors is an integer number (17493).

2¹⁹⁵⁹⁴⁰ is an apocalyptic number.

195940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195940 is an abundant number, since it is smaller than the sum of its proper divisors (223892).

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

195940 is a wasteful number, since it uses less digits than its factorization.

195940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 195940 is about 442.6511041441. The cubic root of 195940 is about 58.0819293983.

The spelling of 195940 in words is "one hundred ninety-five thousand, nine hundred forty".