13870668 has 48 divisors (see below), whose sum is σ = 37608704. Its totient is φ = 3896640.

The previous prime is 13870667. The next prime is 13870693. The reversal of 13870668 is 86607831.

13870668 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13870663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771 + ... + 6477.

Almost surely, 2^13870668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13870668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18804352).

13870668 is an abundant number, since it is smaller than the sum of its proper divisors (23738036).

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

13870668 is a wasteful number, since it uses less digits than its factorization.

13870668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782 (or 2780 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 13870668 is about 3724.3345714369. The cubic root of 13870668 is about 240.2697661069.

The spelling of 13870668 in words is "thirteen million, eight hundred seventy thousand, six hundred sixty-eight".