12700266 has 16 divisors (see below), whose sum is σ = 26220288. Its totient is φ = 4096800.

The previous prime is 12700249. The next prime is 12700271. The reversal of 12700266 is 66200721.

It is a happy number.

It is a super-2 number, since 2×12700266² = 322593512941512, which contains 22 as substring.

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, 33955 + ... + 34326.

It is an arithmetic number, because the mean of its divisors is an integer number (1638768).

Almost surely, 2^12700266 is an apocalyptic number.

12700266 is an abundant number, since it is smaller than the sum of its proper divisors (13520022).

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

12700266 is a wasteful number, since it uses less digits than its factorization.

12700266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68317.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12700266 is about 3563.7432567456. The cubic root of 12700266 is about 233.3122842690.

Adding to 12700266 its reverse (66200721), we get a palindrome (78900987).

The spelling of 12700266 in words is "twelve million, seven hundred thousand, two hundred sixty-six".