12399266 has 16 divisors (see below), whose sum is σ = 20357568. Its totient is φ = 5617200.

The previous prime is 12399253. The next prime is 12399271. The reversal of 12399266 is 66299321.

12399266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7451 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (1272348).

Almost surely, 2^12399266 is an apocalyptic number.

12399266 is a deficient number, since it is larger than the sum of its proper divisors (7958302).

12399266 is a wasteful number, since it uses less digits than its factorization.

12399266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897.

The product of its digits is 34992, while the sum is 38.

The square root of 12399266 is about 3521.2591497929. The cubic root of 12399266 is about 231.4543384045.

The spelling of 12399266 in words is "twelve million, three hundred ninety-nine thousand, two hundred sixty-six".