13988672 has 28 divisors (see below), whose sum is σ = 28719780. Its totient is φ = 6752256.

The previous prime is 13988651. The next prime is 13988677. The reversal of 13988672 is 27688931.

It can be written as a sum of positive squares in 2 ways, for example, as 6677056 + 7311616 = 2584^2 + 2704^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13988677) 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 in 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 5624.

Almost surely, 2^13988672 is an apocalyptic number.

It is an amenable number.

13988672 is an abundant number, since it is smaller than the sum of its proper divisors (14731108).

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

13988672 is an equidigital number, since it uses as much as digits as its factorization.

13988672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578 (or 7568 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 13988672 is about 3740.1433127622. The cubic root of 13988672 is about 240.9492038969.

The spelling of 13988672 in words is "thirteen million, nine hundred eighty-eight thousand, six hundred seventy-two".