13728742 has 8 divisors (see below), whose sum is σ = 20785896. Its totient is φ = 6800112.

The previous prime is 13728731. The next prime is 13728791. The reversal of 13728742 is 24782731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13728698 and 13728707.

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, 31863 + ... + 32290.

It is an arithmetic number, because the mean of its divisors is an integer number (2598237).

Almost surely, 2^13728742 is an apocalyptic number.

13728742 is a deficient number, since it is larger than the sum of its proper divisors (7057154).

13728742 is a wasteful number, since it uses less digits than its factorization.

13728742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64262.

The product of its digits is 18816, while the sum is 34.

The square root of 13728742 is about 3705.2317066548. The cubic root of 13728742 is about 239.4474673507.

The spelling of 13728742 in words is "thirteen million, seven hundred twenty-eight thousand, seven hundred forty-two".