6395842 has 16 divisors (see below), whose sum is σ = 10207512. Its totient is φ = 2995200.

The previous prime is 6395839. The next prime is 6395861. The reversal of 6395842 is 2485936.

It is a Cunningham number, because it is equal to 2529²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 5377761 + 1018081 = 2319^2 + 1009^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10342 + ... + 10942.

Almost surely, 2^6395842 is an apocalyptic number.

6395842 is a deficient number, since it is larger than the sum of its proper divisors (3811670).

6395842 is a wasteful number, since it uses less digits than its factorization.

6395842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 51840, while the sum is 37.

The square root of 6395842 is about 2529.0001977066. Note that the first 3 decimals coincide. The cubic root of 6395842 is about 185.6233368706.

It can be divided in two parts, 63958 and 42, that added together give a cube (64000 = 40³).

The spelling of 6395842 in words is "six million, three hundred ninety-five thousand, eight hundred forty-two".