13028266 has 8 divisors (see below), whose sum is σ = 19590084. Its totient is φ = 6498240.

The previous prime is 13028263. The next prime is 13028291. The reversal of 13028266 is 66282031.

It can be written as a sum of positive squares in 2 ways, for example, as 11082241 + 1946025 = 3329^2 + 1395^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13028263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6895 + ... + 8578.

Almost surely, 2^13028266 is an apocalyptic number.

13028266 is a deficient number, since it is larger than the sum of its proper divisors (6561818).

13028266 is a wasteful number, since it uses less digits than its factorization.

13028266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 13028266 is about 3609.4689360071. The cubic root of 13028266 is about 235.3037629110.

The spelling of 13028266 in words is "thirteen million, twenty-eight thousand, two hundred sixty-six".