13844728 has 8 divisors (see below), whose sum is σ = 25958880. Its totient is φ = 6922360.

The previous prime is 13844723. The next prime is 13844729. The reversal of 13844728 is 82744831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13844723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 865288 + ... + 865303.

It is an arithmetic number, because the mean of its divisors is an integer number (3244860).

Almost surely, 2^13844728 is an apocalyptic number.

It is an amenable number.

13844728 is a deficient number, since it is larger than the sum of its proper divisors (12114152).

13844728 is a wasteful number, since it uses less digits than its factorization.

13844728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730597 (or 1730593 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 13844728 is about 3720.8504404235. The cubic root of 13844728 is about 240.1198937999.

The spelling of 13844728 in words is "thirteen million, eight hundred forty-four thousand, seven hundred twenty-eight".