13889056 has 48 divisors (see below), whose sum is σ = 28957824. Its totient is φ = 6544384.

The previous prime is 13889041. The next prime is 13889059. The reversal of 13889056 is 65098831.

It is a happy number.

13889056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13889056² = 385811753142272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13889059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83085 + ... + 83251.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 2^13889056 is an apocalyptic number.

13889056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13889056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14478912).

13889056 is an abundant number, since it is smaller than the sum of its proper divisors (15068768).

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

13889056 is a wasteful number, since it uses less digits than its factorization.

13889056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 13889056 is about 3726.8023827405. The cubic root of 13889056 is about 240.3758924444.

The spelling of 13889056 in words is "thirteen million, eight hundred eighty-nine thousand, fifty-six".