395445313 has 8 divisors (see below), whose sum is σ = 419047560. Its totient is φ = 371880960.

The previous prime is 395445311. The next prime is 395445343. The reversal of 395445313 is 313544593.

It can be written as a sum of positive squares in 4 ways, for example, as 250652224 + 144793089 = 15832^2 + 12033^2 .

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 395445313 - 2¹ = 395445311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395445311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13653 + ... + 31261.

It is an arithmetic number, because the mean of its divisors is an integer number (52380945).

Almost surely, 2^395445313 is an apocalyptic number.

It is an amenable number.

395445313 is a deficient number, since it is larger than the sum of its proper divisors (23602247).

395445313 is a wasteful number, since it uses less digits than its factorization.

395445313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18947.

The product of its digits is 97200, while the sum is 37.

The square root of 395445313 is about 19885.8068229579. The cubic root of 395445313 is about 733.9990156322. Note that the first 3 decimals are identical.

The spelling of 395445313 in words is "three hundred ninety-five million, four hundred forty-five thousand, three hundred thirteen".