395142686 has 8 divisors (see below), whose sum is σ = 594413400. Its totient is φ = 197004888.

The previous prime is 395142659. The next prime is 395142697. The reversal of 395142686 is 686241593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×395142686² = 312275484598589192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282356 + ... + 283751.

It is an arithmetic number, because the mean of its divisors is an integer number (74301675).

Almost surely, 2^395142686 is an apocalyptic number.

395142686 is a deficient number, since it is larger than the sum of its proper divisors (199270714).

395142686 is a wasteful number, since it uses less digits than its factorization.

395142686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566458.

The product of its digits is 311040, while the sum is 44.

The square root of 395142686 is about 19878.1962461386. The cubic root of 395142686 is about 733.8117292150.

The spelling of 395142686 in words is "three hundred ninety-five million, one hundred forty-two thousand, six hundred eighty-six".