395842 has 4 divisors (see below), whose sum is σ = 593766. Its totient is φ = 197920.

The previous prime is 395803. The next prime is 395849. The reversal of 395842 is 248593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 10201 = 621^2 + 101^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (395849) by changing a digit.

395842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98959 + ... + 98962.

2³⁹⁵⁸⁴² is an apocalyptic number.

395842 is a deficient number, since it is larger than the sum of its proper divisors (197924).

395842 is a wasteful number, since it uses less digits than its factorization.

395842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197923.

The product of its digits is 8640, while the sum is 31.

The square root of 395842 is about 629.1597571365. The cubic root of 395842 is about 73.4244368193.

The spelling of 395842 in words is "three hundred ninety-five thousand, eight hundred forty-two".