13504216 has 16 divisors (see below), whose sum is σ = 27622440. Its totient is φ = 6138240.

The previous prime is 13504187. The next prime is 13504219. The reversal of 13504216 is 61240531.

13504216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13504219) 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, 76641 + ... + 76816.

Almost surely, 2^13504216 is an apocalyptic number.

It is an amenable number.

13504216 is an abundant number, since it is smaller than the sum of its proper divisors (14118224).

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

13504216 is a wasteful number, since it uses less digits than its factorization.

13504216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153474 (or 153470 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13504216 is about 3674.8082943196. The cubic root of 13504216 is about 238.1349421888.

Adding to 13504216 its reverse (61240531), we get a palindrome (74744747).

The spelling of 13504216 in words is "thirteen million, five hundred four thousand, two hundred sixteen".