13963266 has 56 divisors (see below), whose sum is σ = 32121084. Its totient is φ = 4548960.

The previous prime is 13963259. The next prime is 13963267. The reversal of 13963266 is 66236931.

13963266 is a `hidden beast` number, since 1 + 396 + 3 + 266 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11758041 + 2205225 = 3429^2 + 1485^2 .

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13963266.

It is not an unprimeable number, because it can be changed into a prime (13963267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 88860 + ... + 89016.

Almost surely, 2^13963266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13963266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16060542).

13963266 is an abundant number, since it is smaller than the sum of its proper divisors (18157818).

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

13963266 is an equidigital number, since it uses as much as digits as its factorization.

13963266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 223 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 13963266 is about 3736.7453753233. The cubic root of 13963266 is about 240.8032461493.

The spelling of 13963266 in words is "thirteen million, nine hundred sixty-three thousand, two hundred sixty-six".