13963218 has 16 divisors (see below), whose sum is σ = 28576416. Its totient is φ = 4546080.

The previous prime is 13963217. The next prime is 13963241. The reversal of 13963218 is 81236931.

It is not an unprimeable number, because it can be changed into a prime (13963211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26803 + ... + 27318.

It is an arithmetic number, because the mean of its divisors is an integer number (1786026).

Almost surely, 2^13963218 is an apocalyptic number.

13963218 is an abundant number, since it is smaller than the sum of its proper divisors (14613198).

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

13963218 is a wasteful number, since it uses less digits than its factorization.

13963218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54169.

The product of its digits is 7776, while the sum is 33.

The square root of 13963218 is about 3736.7389526163. The cubic root of 13963218 is about 240.8029702212.

The spelling of 13963218 in words is "thirteen million, nine hundred sixty-three thousand, two hundred eighteen".