13218708 has 12 divisors (see below), whose sum is σ = 30843680. Its totient is φ = 4406232.

The previous prime is 13218701. The next prime is 13218727. The reversal of 13218708 is 80781231.

It is a happy number.

13218708 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13218701) 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, 550768 + ... + 550791.

Almost surely, 2^13218708 is an apocalyptic number.

It is an amenable number.

13218708 is an abundant number, since it is smaller than the sum of its proper divisors (17624972).

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

13218708 is a wasteful number, since it uses less digits than its factorization.

13218708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101566 (or 1101564 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 13218708 is about 3635.7541170987. The cubic root of 13218708 is about 236.4447468984. Note that the first 3 decimals are identical.

Adding to 13218708 its reverse (80781231), we get a palindrome (93999939).

The spelling of 13218708 in words is "thirteen million, two hundred eighteen thousand, seven hundred eight".