13881308 has 18 divisors (see below), whose sum is σ = 28258776. Its totient is φ = 5949048.

The previous prime is 13881289. The next prime is 13881311. The reversal of 13881308 is 80318831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35216 + ... + 35607.

It is an arithmetic number, because the mean of its divisors is an integer number (1569932).

Almost surely, 2^13881308 is an apocalyptic number.

It is an amenable number.

13881308 is an abundant number, since it is smaller than the sum of its proper divisors (14377468).

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

13881308 is a wasteful number, since it uses less digits than its factorization.

13881308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70841 (or 70832 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 13881308 is about 3725.7627407016. The cubic root of 13881308 is about 240.3311862901.

The spelling of 13881308 in words is "thirteen million, eight hundred eighty-one thousand, three hundred eight".