13668006 has 32 divisors (see below), whose sum is σ = 30554496. Its totient is φ = 4040000.

The previous prime is 13668001. The next prime is 13668007. The reversal of 13668006 is 60086631.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 181 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (954828).

Almost surely, 2^13668006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13668006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15277248).

13668006 is an abundant number, since it is smaller than the sum of its proper divisors (16886490).

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

13668006 is a wasteful number, since it uses less digits than its factorization.

13668006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 13668006 is about 3697.0266431282. The cubic root of 13668006 is about 239.0938398915.

The spelling of 13668006 in words is "thirteen million, six hundred sixty-eight thousand, six".