395562381 has 4 divisors (see below), whose sum is σ = 527416512. Its totient is φ = 263708252.

The previous prime is 395562367. The next prime is 395562389. The reversal of 395562381 is 183265593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 395562381 - 2⁶ = 395562317 is a prime.

It is a super-2 number, since 2×395562381² = 312939194524778322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395562389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65927061 + ... + 65927066.

It is an arithmetic number, because the mean of its divisors is an integer number (131854128).

Almost surely, 2^395562381 is an apocalyptic number.

It is an amenable number.

395562381 is a deficient number, since it is larger than the sum of its proper divisors (131854131).

395562381 is a wasteful number, since it uses less digits than its factorization.

395562381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131854130.

The product of its digits is 194400, while the sum is 42.

The square root of 395562381 is about 19888.7501115580. The cubic root of 395562381 is about 734.0714397374.

The spelling of 395562381 in words is "three hundred ninety-five million, five hundred sixty-two thousand, three hundred eighty-one".