13728442 has 16 divisors (see below), whose sum is σ = 25345152. Its totient is φ = 5430960.

The previous prime is 13728439. The next prime is 13728461. The reversal of 13728442 is 24482731.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37534 + ... + 37897.

It is an arithmetic number, because the mean of its divisors is an integer number (1584072).

Almost surely, 2^13728442 is an apocalyptic number.

13728442 is a deficient number, since it is larger than the sum of its proper divisors (11616710).

13728442 is a wasteful number, since it uses less digits than its factorization.

13728442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75453.

The product of its digits is 10752, while the sum is 31.

The square root of 13728442 is about 3705.1912231355. The cubic root of 13728442 is about 239.4457232054.

The spelling of 13728442 in words is "thirteen million, seven hundred twenty-eight thousand, four hundred forty-two".