13889500 has 24 divisors (see below), whose sum is σ = 30335760. Its totient is φ = 5555600.

The previous prime is 13889483. The next prime is 13889503. The reversal of 13889500 is 598831.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13390 + ... + 14389.

It is an arithmetic number, because the mean of its divisors is an integer number (1263990).

Almost surely, 2^13889500 is an apocalyptic number.

13889500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13889500 is an abundant number, since it is smaller than the sum of its proper divisors (16446260).

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

13889500 is a wasteful number, since it uses less digits than its factorization.

13889500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27798 (or 27786 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 13889500 is about 3726.8619507570. The cubic root of 13889500 is about 240.3784538318.

The spelling of 13889500 in words is "thirteen million, eight hundred eighty-nine thousand, five hundred".