13849728 has 32 divisors (see below), whose sum is σ = 36789360. Its totient is φ = 4616448.

The previous prime is 13849721. The next prime is 13849739. The reversal of 13849728 is 82794831.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 13849728.

It is not an unprimeable number, because it can be changed into a prime (13849721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17650 + ... + 18417.

Almost surely, 2^13849728 is an apocalyptic number.

It is an amenable number.

13849728 is an abundant number, since it is smaller than the sum of its proper divisors (22939632).

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

13849728 is an equidigital number, since it uses as much as digits as its factorization.

13849728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36084 (or 36072 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 13849728 is about 3721.5222691796. The cubic root of 13849728 is about 240.1487966180.

The spelling of 13849728 in words is "thirteen million, eight hundred forty-nine thousand, seven hundred twenty-eight".