6628266 has 24 divisors (see below), whose sum is σ = 15206724. Its totient is φ = 2079360.

The previous prime is 6628261. The next prime is 6628267.

6628266 is a `hidden beast` number, since 6 + 628 + 26 + 6 = 666.

6628266 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 18225 = 2571^2 + 135^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6628266.

It is not an unprimeable number, because it can be changed into a prime (6628261) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10525 + ... + 11136.

Almost surely, 2^6628266 is an apocalyptic number.

6628266 is an abundant number, since it is smaller than the sum of its proper divisors (8578458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6628266 is a wasteful number, since it uses less digits than its factorization.

6628266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21686 (or 21683 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6628266 is about 2574.5419009991. The cubic root of 6628266 is about 187.8451456075.

The spelling of 6628266 in words is "six million, six hundred twenty-eight thousand, two hundred sixty-six".