395942243 has 4 divisors (see below), whose sum is σ = 395988768. Its totient is φ = 395895720.

The previous prime is 395942231. The next prime is 395942279. The reversal of 395942243 is 342249593.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 395942243 - 2⁴ = 395942227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 395942243.

It is not an unprimeable number, because it can be changed into a prime (395942213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6443 + ... + 28868.

It is an arithmetic number, because the mean of its divisors is an integer number (98997192).

Almost surely, 2^395942243 is an apocalyptic number.

395942243 is a deficient number, since it is larger than the sum of its proper divisors (46525).

395942243 is a wasteful number, since it uses less digits than its factorization.

395942243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46524.

The product of its digits is 233280, while the sum is 41.

The square root of 395942243 is about 19898.2974899864. The cubic root of 395942243 is about 734.3063429594.

The spelling of 395942243 in words is "three hundred ninety-five million, nine hundred forty-two thousand, two hundred forty-three".