13668606 has 48 divisors (see below), whose sum is σ = 34280064. Its totient is φ = 3855312.

The previous prime is 13668583. The next prime is 13668631. The reversal of 13668606 is 60686631.

13668606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13668606 is a nontrivial binomial coefficient, being equal to C(5229, 2).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9805 + ... + 11111.

It is an arithmetic number, because the mean of its divisors is an integer number (714168).

Almost surely, 2^13668606 is an apocalyptic number.

13668606 is the 5228-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13668606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17140032).

13668606 is an abundant number, since it is smaller than the sum of its proper divisors (20611458).

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

13668606 is a wasteful number, since it uses less digits than its factorization.

13668606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 13668606 is about 3697.1077885288. The cubic root of 13668606 is about 239.0973384317.

The spelling of 13668606 in words is "thirteen million, six hundred sixty-eight thousand, six hundred six".