13320244 has 36 divisors (see below), whose sum is σ = 27402592. Its totient is φ = 5549760.

The previous prime is 13320233. The next prime is 13320247. The reversal of 13320244 is 44202331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46927 + ... + 47209.

Almost surely, 2^13320244 is an apocalyptic number.

13320244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13320244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13701296).

13320244 is an abundant number, since it is smaller than the sum of its proper divisors (14082348).

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

13320244 is a wasteful number, since it uses less digits than its factorization.

13320244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13320244 is about 3649.6909458199. The cubic root of 13320244 is about 237.0485992901.

Adding to 13320244 its reverse (44202331), we get a palindrome (57522575).

The spelling of 13320244 in words is "thirteen million, three hundred twenty thousand, two hundred forty-four".