13197320 has 64 divisors (see below), whose sum is σ = 31795200. Its totient is φ = 4919040.

The previous prime is 13197313. The next prime is 13197337. The reversal of 13197320 is 2379131.

It is a self number, because there is not a number n which added to its sum of digits gives 13197320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35777 + ... + 36143.

It is an arithmetic number, because the mean of its divisors is an integer number (496800).

Almost surely, 2^13197320 is an apocalyptic number.

13197320 is a gapful number since it is divisible by the number (10) 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 13197320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15897600).

13197320 is an abundant number, since it is smaller than the sum of its proper divisors (18597880).

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

13197320 is a wasteful number, since it uses less digits than its factorization.

13197320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 13197320 is about 3632.8115833332. The cubic root of 13197320 is about 236.3171547472.

The spelling of 13197320 in words is "thirteen million, one hundred ninety-seven thousand, three hundred twenty".