195730 has 24 divisors (see below), whose sum is σ = 378252. Its totient is φ = 72864.

The previous prime is 195709. The next prime is 195731. The reversal of 195730 is 37591.

It can be written as a sum of positive squares in 2 ways, for example, as 190969 + 4761 = 437^2 + 69^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195695 and 195704.

It is not an unprimeable number, because it can be changed into a prime (195731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5272 + ... + 5308.

2¹⁹⁵⁷³⁰ is an apocalyptic number.

195730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195730 is a deficient number, since it is larger than the sum of its proper divisors (182522).

195730 is a wasteful number, since it uses less digits than its factorization.

195730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 195730 is about 442.4138334184. The cubic root of 195730 is about 58.0611720827.

The spelling of 195730 in words is "one hundred ninety-five thousand, seven hundred thirty".