395005169 has 8 divisors (see below), whose sum is σ = 427742952. Its totient is φ = 362603520.

The previous prime is 395005157. The next prime is 395005189. The reversal of 395005169 is 961500593.

It can be written as a sum of positive squares in 4 ways, for example, as 30691600 + 364313569 = 5540^2 + 19087^2 .

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 395005169 - 2⁴ = 395005153 is a prime.

It is a super-2 number, since 2×395005169² = 312058167073437122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (395005189) 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, 81584 + ... + 86289.

It is an arithmetic number, because the mean of its divisors is an integer number (53467869).

Almost surely, 2^395005169 is an apocalyptic number.

It is an amenable number.

395005169 is a deficient number, since it is larger than the sum of its proper divisors (32737783).

395005169 is a wasteful number, since it uses less digits than its factorization.

395005169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168067.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 395005169 is about 19874.7369542341. The cubic root of 395005169 is about 733.7265926303.

The spelling of 395005169 in words is "three hundred ninety-five million, five thousand, one hundred sixty-nine".