13504328 has 8 divisors (see below), whose sum is σ = 25320630. Its totient is φ = 6752160.

The previous prime is 13504301. The next prime is 13504331. The reversal of 13504328 is 82340531.

It can be written as a sum of positive squares in only one way, i.e., 12802084 + 702244 = 3578^2 + 838^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13504297 and 13504306.

It is an unprimeable number.

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, 844013 + ... + 844028.

Almost surely, 2^13504328 is an apocalyptic number.

It is an amenable number.

13504328 is a deficient number, since it is larger than the sum of its proper divisors (11816302).

13504328 is a wasteful number, since it uses less digits than its factorization.

13504328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688047 (or 1688043 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 13504328 is about 3674.8235331782. The cubic root of 13504328 is about 238.1356005274.

Adding to 13504328 its reverse (82340531), we get a palindrome (95844859).

The spelling of 13504328 in words is "thirteen million, five hundred four thousand, three hundred twenty-eight".