13224286 has 4 divisors (see below), whose sum is σ = 19836432. Its totient is φ = 6612142.

The previous prime is 13224271. The next prime is 13224313. The reversal of 13224286 is 68242231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68242231 = 2909 ⋅23459.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3306070 + ... + 3306073.

It is an arithmetic number, because the mean of its divisors is an integer number (4959108).

Almost surely, 2^13224286 is an apocalyptic number.

13224286 is a deficient number, since it is larger than the sum of its proper divisors (6612146).

13224286 is an equidigital number, since it uses as much as digits as its factorization.

13224286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612145.

The product of its digits is 4608, while the sum is 28.

The square root of 13224286 is about 3636.5211397708. The cubic root of 13224286 is about 236.4780003583.

The spelling of 13224286 in words is "thirteen million, two hundred twenty-four thousand, two hundred eighty-six".