13221414 has 16 divisors (see below), whose sum is σ = 29381040. Its totient is φ = 4407120.

The previous prime is 13221413. The next prime is 13221421. The reversal of 13221414 is 41412231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221413) 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, 122367 + ... + 122474.

It is an arithmetic number, because the mean of its divisors is an integer number (1836315).

Almost surely, 2^13221414 is an apocalyptic number.

13221414 is an abundant number, since it is smaller than the sum of its proper divisors (16159626).

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

13221414 is a wasteful number, since it uses less digits than its factorization.

13221414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244852 (or 244846 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 13221414 is about 3636.1262354324. The cubic root of 13221414 is about 236.4608799888.

Adding to 13221414 its reverse (41412231), we get a palindrome (54633645).

The spelling of 13221414 in words is "thirteen million, two hundred twenty-one thousand, four hundred fourteen".