395665441 has 8 divisors (see below), whose sum is σ = 397490184. Its totient is φ = 393845760.

The previous prime is 395665433. The next prime is 395665499. The reversal of 395665441 is 144566593.

It can be written as a sum of positive squares in 4 ways, for example, as 11662225 + 384003216 = 3415^2 + 19596^2 .

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 395665441 - 2³ = 395665433 is a prime.

It is a super-2 number, since 2×395665441² = 313102282403448962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395665541) 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, 266421 + ... + 267901.

It is an arithmetic number, because the mean of its divisors is an integer number (49686273).

Almost surely, 2^395665441 is an apocalyptic number.

It is an amenable number.

395665441 is a deficient number, since it is larger than the sum of its proper divisors (1824743).

395665441 is a wasteful number, since it uses less digits than its factorization.

395665441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531.

The product of its digits is 388800, while the sum is 43.

The square root of 395665441 is about 19891.3408547539. The cubic root of 395665441 is about 734.1351859688.

The spelling of 395665441 in words is "three hundred ninety-five million, six hundred sixty-five thousand, four hundred forty-one".