395265681 has 12 divisors (see below), whose sum is σ = 571329408. Its totient is φ = 263330424.

The previous prime is 395265617. The next prime is 395265697. The reversal of 395265681 is 186562593.

395265681 is a `hidden beast` number, since 39 + 52 + 6 + 568 + 1 = 666.

It is not a de Polignac number, because 395265681 - 2⁶ = 395265617 is a prime.

It is a super-2 number, since 2×395265681² = 312469917152787522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (395265601) 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, 345 + ... + 28118.

It is an arithmetic number, because the mean of its divisors is an integer number (47610784).

Almost surely, 2^395265681 is an apocalyptic number.

It is an amenable number.

395265681 is a deficient number, since it is larger than the sum of its proper divisors (176063727).

395265681 is a wasteful number, since it uses less digits than its factorization.

395265681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30012 (or 30009 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 395265681 is about 19881.2897217459. The cubic root of 395265681 is about 733.8878585171.

The spelling of 395265681 in words is "three hundred ninety-five million, two hundred sixty-five thousand, six hundred eighty-one".