13220248 has 32 divisors (see below), whose sum is σ = 25923600. Its totient is φ = 6314112.

The previous prime is 13220243. The next prime is 13220261. The reversal of 13220248 is 84202231.

13220248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17086 + ... + 17842.

Almost surely, 2^13220248 is an apocalyptic number.

It is an amenable number.

13220248 is a deficient number, since it is larger than the sum of its proper divisors (12703352).

13220248 is a wasteful number, since it uses less digits than its factorization.

13220248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 13220248 is about 3635.9658964297. The cubic root of 13220248 is about 236.4539286019.

Adding to 13220248 its reverse (84202231), we get a palindrome (97422479).

The spelling of 13220248 in words is "thirteen million, two hundred twenty thousand, two hundred forty-eight".