13938894 has 48 divisors (see below), whose sum is σ = 32432400. Its totient is φ = 4313088.

The previous prime is 13938857. The next prime is 13938907. The reversal of 13938894 is 49883931.

13938894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17742 + ... + 18510.

It is an arithmetic number, because the mean of its divisors is an integer number (675675).

Almost surely, 2^13938894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13938894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16216200).

13938894 is an abundant number, since it is smaller than the sum of its proper divisors (18493506).

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

13938894 is a wasteful number, since it uses less digits than its factorization.

13938894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 846 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 13938894 is about 3733.4828243880. The cubic root of 13938894 is about 240.6630622648.

The spelling of 13938894 in words is "thirteen million, nine hundred thirty-eight thousand, eight hundred ninety-four".