13355728 has 20 divisors (see below), whose sum is σ = 25970560. Its totient is φ = 6653664.

The previous prime is 13355723. The next prime is 13355737. The reversal of 13355728 is 82755331.

13355728 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 = 13355693 and 13355702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13355723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553 + ... + 6271.

It is an arithmetic number, because the mean of its divisors is an integer number (1298528).

Almost surely, 2^13355728 is an apocalyptic number.

It is an amenable number.

13355728 is a deficient number, since it is larger than the sum of its proper divisors (12614832).

13355728 is a wasteful number, since it uses less digits than its factorization.

13355728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034 (or 3028 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 13355728 is about 3654.5489461765. The cubic root of 13355728 is about 237.2589051078.

The spelling of 13355728 in words is "thirteen million, three hundred fifty-five thousand, seven hundred twenty-eight".