6390266 has 16 divisors (see below), whose sum is σ = 10500840. Its totient is φ = 2903040.

The previous prime is 6390257. The next prime is 6390281. The reversal of 6390266 is 6620936.

It can be written as a sum of positive squares in 4 ways, for example, as 6375625 + 14641 = 2525^2 + 121^2 .

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, 2255 + ... + 4226.

Almost surely, 2^6390266 is an apocalyptic number.

6390266 is a deficient number, since it is larger than the sum of its proper divisors (4110574).

6390266 is a wasteful number, since it uses less digits than its factorization.

6390266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 6390266 is about 2527.8975453922. The cubic root of 6390266 is about 185.5693780299.

The spelling of 6390266 in words is "six million, three hundred ninety thousand, two hundred sixty-six".