13889502 has 64 divisors (see below), whose sum is σ = 34272000. Its totient is φ = 4134240.

The previous prime is 13889483. The next prime is 13889503. The reversal of 13889502 is 20598831.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39624 + ... + 39972.

It is an arithmetic number, because the mean of its divisors is an integer number (535500).

Almost surely, 2^13889502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13889502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17136000).

13889502 is an abundant number, since it is smaller than the sum of its proper divisors (20382498).

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

13889502 is a wasteful number, since it uses less digits than its factorization.

13889502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 13889502 is about 3726.8622190792. The cubic root of 13889502 is about 240.3784653695.

The spelling of 13889502 in words is "thirteen million, eight hundred eighty-nine thousand, five hundred two".