13702728 has 64 divisors (see below), whose sum is σ = 37920960. Its totient is φ = 4098816.

The previous prime is 13702723. The next prime is 13702739. The reversal of 13702728 is 82720731.

It is a junction number, because it is equal to n+sod(n) for n = 13702695 and 13702704.

It is not an unprimeable number, because it can be changed into a prime (13702721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10951 + ... + 12137.

It is an arithmetic number, because the mean of its divisors is an integer number (592515).

Almost surely, 2^13702728 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 13702728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18960480).

13702728 is an abundant number, since it is smaller than the sum of its proper divisors (24218232).

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

13702728 is a wasteful number, since it uses less digits than its factorization.

13702728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 13702728 is about 3701.7196004020. The cubic root of 13702728 is about 239.2961321711.

The spelling of 13702728 in words is "thirteen million, seven hundred two thousand, seven hundred twenty-eight".