13313240 has 32 divisors (see below), whose sum is σ = 30149280. Its totient is φ = 5290752.

The previous prime is 13313221. The next prime is 13313257. The reversal of 13313240 is 4231331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5684 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (942165).

Almost surely, 2^13313240 is an apocalyptic number.

13313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13313240 is an abundant number, since it is smaller than the sum of its proper divisors (16836040).

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

13313240 is a wasteful number, since it uses less digits than its factorization.

13313240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13313240 is about 3648.7312863515. The cubic root of 13313240 is about 237.0070440084.

Adding to 13313240 its reverse (4231331), we get a palindrome (17544571).

The spelling of 13313240 in words is "thirteen million, three hundred thirteen thousand, two hundred forty".