13668028 has 24 divisors (see below), whose sum is σ = 26334000. Its totient is φ = 6155520.

The previous prime is 13668007. The next prime is 13668029. The reversal of 13668028 is 82086631.

13668028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13667984 and 13668002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668029) 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, 3598 + ... + 6346.

It is an arithmetic number, because the mean of its divisors is an integer number (1097250).

Almost surely, 2^13668028 is an apocalyptic number.

It is an amenable number.

13668028 is a deficient number, since it is larger than the sum of its proper divisors (12665972).

13668028 is a wasteful number, since it uses less digits than its factorization.

13668028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2875 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 13668028 is about 3697.0296184910. The cubic root of 13668028 is about 239.0939681731.

The spelling of 13668028 in words is "thirteen million, six hundred sixty-eight thousand, twenty-eight".