13683228 has 48 divisors (see below), whose sum is σ = 34621440. Its totient is φ = 4181184.

The previous prime is 13683199. The next prime is 13683247. The reversal of 13683228 is 82238631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37101 + ... + 37467.

It is an arithmetic number, because the mean of its divisors is an integer number (721280).

Almost surely, 2^13683228 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 13683228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17310720).

13683228 is an abundant number, since it is smaller than the sum of its proper divisors (20938212).

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

13683228 is a wasteful number, since it uses less digits than its factorization.

13683228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 624 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 13683228 is about 3699.0847516649. The cubic root of 13683228 is about 239.1825662249.

The spelling of 13683228 in words is "thirteen million, six hundred eighty-three thousand, two hundred twenty-eight".