13833728 has 40 divisors (see below), whose sum is σ = 28357560. Its totient is φ = 6737920.

The previous prime is 13833713. The next prime is 13833749. The reversal of 13833728 is 82733831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20663 + ... + 21321.

It is an arithmetic number, because the mean of its divisors is an integer number (708939).

Almost surely, 2^13833728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13833728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14178780).

13833728 is an abundant number, since it is smaller than the sum of its proper divisors (14523832).

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

13833728 is an frugal number, since it uses more digits than its factorization.

13833728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 702 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 13833728 is about 3719.3719900005. The cubic root of 13833728 is about 240.0562830962.

The spelling of 13833728 in words is "thirteen million, eight hundred thirty-three thousand, seven hundred twenty-eight".