13020216 has 64 divisors (see below), whose sum is σ = 35856000. Its totient is φ = 3907200.

The previous prime is 13020211. The next prime is 13020223. The reversal of 13020216 is 61202031.

It is a junction number, because it is equal to n+sod(n) for n = 13020195 and 13020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020211) 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 15 ways as a sum of consecutive naturals, for example, 39171 + ... + 39501.

It is an arithmetic number, because the mean of its divisors is an integer number (560250).

Almost surely, 2^13020216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13020216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17928000).

13020216 is an abundant number, since it is smaller than the sum of its proper divisors (22835784).

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

13020216 is a wasteful number, since it uses less digits than its factorization.

13020216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13020216 is about 3608.3536412054. The cubic root of 13020216 is about 235.2552891909.

Adding to 13020216 its reverse (61202031), we get a palindrome (74222247).

The spelling of 13020216 in words is "thirteen million, twenty thousand, two hundred sixteen".