13245320 has 32 divisors (see below), whose sum is σ = 32512320. Its totient is φ = 4816320.

The previous prime is 13245317. The next prime is 13245341. The reversal of 13245320 is 2354231.

It is a happy number.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13245292 and 13245301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14612 + ... + 15491.

It is an arithmetic number, because the mean of its divisors is an integer number (1016010).

Almost surely, 2^13245320 is an apocalyptic number.

13245320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13245320 is an abundant number, since it is smaller than the sum of its proper divisors (19267000).

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

13245320 is a wasteful number, since it uses less digits than its factorization.

13245320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30125 (or 30121 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13245320 is about 3639.4120404263. The cubic root of 13245320 is about 236.6033113052.

13245320 divided by its sum of digits (20) gives a palindrome (662266).

Adding to 13245320 its reverse (2354231), we get a palindrome (15599551).

The spelling of 13245320 in words is "thirteen million, two hundred forty-five thousand, three hundred twenty".