13488644 has 12 divisors (see below), whose sum is σ = 25421004. Its totient is φ = 6225504.

The previous prime is 13488623. The next prime is 13488647. The reversal of 13488644 is 44688431.

It can be written as a sum of positive squares in 2 ways, for example, as 1322500 + 12166144 = 1150^2 + 3488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13488598 and 13488607.

It is not an unprimeable number, because it can be changed into a prime (13488647) 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, 129647 + ... + 129750.

It is an arithmetic number, because the mean of its divisors is an integer number (2118417).

Almost surely, 2^13488644 is an apocalyptic number.

It is an amenable number.

13488644 is a deficient number, since it is larger than the sum of its proper divisors (11932360).

13488644 is a wasteful number, since it uses less digits than its factorization.

13488644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259414 (or 259412 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 13488644 is about 3672.6889331932. The cubic root of 13488644 is about 238.0433741535.

The spelling of 13488644 in words is "thirteen million, four hundred eighty-eight thousand, six hundred forty-four".