13728926 has 8 divisors (see below), whose sum is σ = 20691624. Its totient is φ = 6831720.

The previous prime is 13728917. The next prime is 13728937. The reversal of 13728926 is 62982731.

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

It is a super-2 number, since 2×13728926² = 376966818226952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13728926.

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, 15845 + ... + 16688.

It is an arithmetic number, because the mean of its divisors is an integer number (2586453).

Almost surely, 2^13728926 is an apocalyptic number.

13728926 is a deficient number, since it is larger than the sum of its proper divisors (6962698).

13728926 is a wasteful number, since it uses less digits than its factorization.

13728926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32746.

The product of its digits is 36288, while the sum is 38.

The square root of 13728926 is about 3705.2565363278. The cubic root of 13728926 is about 239.4485370806.

The spelling of 13728926 in words is "thirteen million, seven hundred twenty-eight thousand, nine hundred twenty-six".