13881494 has 16 divisors (see below), whose sum is σ = 23037696. Its totient is φ = 6220200.

The previous prime is 13881487. The next prime is 13881509. The reversal of 13881494 is 49418831.

13881494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2882 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (1439856).

Almost surely, 2^13881494 is an apocalyptic number.

13881494 is a deficient number, since it is larger than the sum of its proper divisors (9156202).

13881494 is a wasteful number, since it uses less digits than its factorization.

13881494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8971.

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

The square root of 13881494 is about 3725.7877019498. The cubic root of 13881494 is about 240.3322597097.

It can be divided in two parts, 1388 and 1494, that added together give a palindrome (2882).

The spelling of 13881494 in words is "thirteen million, eight hundred eighty-one thousand, four hundred ninety-four".