13504356 has 18 divisors (see below), whose sum is σ = 34136102. Its totient is φ = 4501440.

The previous prime is 13504331. The next prime is 13504399. The reversal of 13504356 is 65340531.

13504356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10497600 + 3006756 = 3240^2 + 1734^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187525 + ... + 187596.

Almost surely, 2^13504356 is an apocalyptic number.

It is an amenable number.

13504356 is an abundant number, since it is smaller than the sum of its proper divisors (20631746).

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

13504356 is a wasteful number, since it uses less digits than its factorization.

13504356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375131 (or 375126 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 13504356 is about 3674.8273428829. The cubic root of 13504356 is about 238.1357651115.

Adding to 13504356 its reverse (65340531), we get a palindrome (78844887).

The spelling of 13504356 in words is "thirteen million, five hundred four thousand, three hundred fifty-six".