395245 has 8 divisors (see below), whose sum is σ = 478584. Its totient is φ = 313344.

The previous prime is 395243. The next prime is 395251. The reversal of 395245 is 542593.

It can be written as a sum of positive squares in 4 ways, for example, as 170569 + 224676 = 413^2 + 474^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 395245 - 2¹ = 395243 is a prime.

It is a super-2 number, since 2×395245² = 312437220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395243) by changing a digit.

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, 397 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (59823).

2³⁹⁵²⁴⁵ is an apocalyptic number.

It is an amenable number.

395245 is a deficient number, since it is larger than the sum of its proper divisors (83339).

395245 is a wasteful number, since it uses less digits than its factorization.

395245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its digits is 5400, while the sum is 28.

The square root of 395245 is about 628.6851358192. The cubic root of 395245 is about 73.3875058857.

The spelling of 395245 in words is "three hundred ninety-five thousand, two hundred forty-five".