395161839 has 6 divisors (see below), whose sum is σ = 570789336. Its totient is φ = 263441220.

The previous prime is 395161783. The next prime is 395161847. The reversal of 395161839 is 938161593.

It is not a de Polignac number, because 395161839 - 2²⁷ = 260944111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395161794 and 395161803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395161139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21953427 + ... + 21953444.

It is an arithmetic number, because the mean of its divisors is an integer number (95131556).

Almost surely, 2^395161839 is an apocalyptic number.

395161839 is a deficient number, since it is larger than the sum of its proper divisors (175627497).

395161839 is a wasteful number, since it uses less digits than its factorization.

395161839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43906877 (or 43906874 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 395161839 is about 19878.6779993037. The cubic root of 395161839 is about 733.8235852436.

The spelling of 395161839 in words is "three hundred ninety-five million, one hundred sixty-one thousand, eight hundred thirty-nine".