13868556 has 48 divisors (see below), whose sum is σ = 36691200. Its totient is φ = 4041792.

The previous prime is 13868551. The next prime is 13868567. The reversal of 13868556 is 65586831.

13868556 is digitally balanced in base 2, because in such base 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 (13868551) 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, 625 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^13868556 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 13868556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18345600).

13868556 is an abundant number, since it is smaller than the sum of its proper divisors (22822644).

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

13868556 is a wasteful number, since it uses less digits than its factorization.

13868556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718 (or 4716 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 13868556 is about 3724.0510200587. The cubic root of 13868556 is about 240.2575706956.

The spelling of 13868556 in words is "thirteen million, eight hundred sixty-eight thousand, five hundred fifty-six".