395916445 has 4 divisors (see below), whose sum is σ = 475099740. Its totient is φ = 316733152.

The previous prime is 395916403. The next prime is 395916463. The reversal of 395916445 is 544619593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544619593 = 7 ⋅77802799.

It can be written as a sum of positive squares in 2 ways, for example, as 127644804 + 268271641 = 11298^2 + 16379^2 .

It is a cyclic number.

It is not a de Polignac number, because 395916445 - 2²³ = 387527837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395916395 and 395916404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39591640 + ... + 39591649.

It is an arithmetic number, because the mean of its divisors is an integer number (118774935).

Almost surely, 2^395916445 is an apocalyptic number.

It is an amenable number.

395916445 is a deficient number, since it is larger than the sum of its proper divisors (79183295).

395916445 is an equidigital number, since it uses as much as digits as its factorization.

395916445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79183294.

The product of its digits is 583200, while the sum is 46.

The square root of 395916445 is about 19897.6492330124. The cubic root of 395916445 is about 734.2903944662.

The spelling of 395916445 in words is "three hundred ninety-five million, nine hundred sixteen thousand, four hundred forty-five".