395095221 has 12 divisors (see below), whose sum is σ = 570892140. Its totient is φ = 263304960.

The previous prime is 395095193. The next prime is 395095247. The reversal of 395095221 is 122590593.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 230614596 + 164480625 = 15186^2 + 12825^2 .

It is not a de Polignac number, because 395095221 - 2⁹ = 395094709 is a prime.

It is a super-2 number, since 2×395095221² = 312200467314077682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395095271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28645 + ... + 40133.

It is an arithmetic number, because the mean of its divisors is an integer number (47574345).

Almost surely, 2^395095221 is an apocalyptic number.

It is an amenable number.

395095221 is a deficient number, since it is larger than the sum of its proper divisors (175796919).

395095221 is a wasteful number, since it uses less digits than its factorization.

395095221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15316 (or 15313 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 395095221 is about 19877.0023142324. The cubic root of 395095221 is about 733.7823459317.

The spelling of 395095221 in words is "three hundred ninety-five million, ninety-five thousand, two hundred twenty-one".