13806266 has 8 divisors (see below), whose sum is σ = 20841780. Its totient is φ = 6859008.

The previous prime is 13806259. The next prime is 13806269. The reversal of 13806266 is 66260831.

It can be written as a sum of positive squares in 2 ways, for example, as 13801225 + 5041 = 3715^2 + 71^2 .

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

It is a super-2 number, since 2×13806266² = 381225961725512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13806269) 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, 21671 + ... + 22298.

Almost surely, 2^13806266 is an apocalyptic number.

13806266 is a deficient number, since it is larger than the sum of its proper divisors (7035514).

13806266 is a wasteful number, since it uses less digits than its factorization.

13806266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44128.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13806266 is about 3715.6784037373. The cubic root of 13806266 is about 239.8973287690.

The spelling of 13806266 in words is "thirteen million, eight hundred six thousand, two hundred sixty-six".