13808266 has 4 divisors (see below), whose sum is σ = 20712402. Its totient is φ = 6904132.

The previous prime is 13808251. The next prime is 13808281. The reversal of 13808266 is 66280831.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13808251) and next prime (13808281).

It can be written as a sum of positive squares in only one way, i.e., 10989225 + 2819041 = 3315^2 + 1679^2 .

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 as a sum of consecutive naturals, namely, 3452065 + ... + 3452068.

Almost surely, 2^13808266 is an apocalyptic number.

13808266 is a deficient number, since it is larger than the sum of its proper divisors (6904136).

13808266 is an equidigital number, since it uses as much as digits as its factorization.

13808266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6904135.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 13808266 is about 3715.9475238491. The cubic root of 13808266 is about 239.9089121928.

The spelling of 13808266 in words is "thirteen million, eight hundred eight thousand, two hundred sixty-six".