13881368 has 16 divisors (see below), whose sum is σ = 26268000. Its totient is φ = 6876576.

The previous prime is 13881337. The next prime is 13881377. The reversal of 13881368 is 86318831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7088 + ... + 8831.

It is an arithmetic number, because the mean of its divisors is an integer number (1641750).

Almost surely, 2^13881368 is an apocalyptic number.

It is an amenable number.

13881368 is a deficient number, since it is larger than the sum of its proper divisors (12386632).

13881368 is a wasteful number, since it uses less digits than its factorization.

13881368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16034 (or 16030 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 13881368 is about 3725.7707927354. The cubic root of 13881368 is about 240.3315325555.

The spelling of 13881368 in words is "thirteen million, eight hundred eighty-one thousand, three hundred sixty-eight".