13307056 has 80 divisors (see below), whose sum is σ = 32408640. Its totient is φ = 5160960.

The previous prime is 13307051. The next prime is 13307057. The reversal of 13307056 is 65070331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13307056.

It is not an unprimeable number, because it can be changed into a prime (13307051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55096 + ... + 55336.

It is an arithmetic number, because the mean of its divisors is an integer number (405108).

Almost surely, 2^13307056 is an apocalyptic number.

13307056 is a gapful number since it is divisible by the number (16) 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 13307056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16204320).

13307056 is an abundant number, since it is smaller than the sum of its proper divisors (19101584).

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

13307056 is a wasteful number, since it uses less digits than its factorization.

13307056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 13307056 is about 3647.8837700782. The cubic root of 13307056 is about 236.9703417343.

Adding to 13307056 its reverse (65070331), we get a palindrome (78377387).

The spelling of 13307056 in words is "thirteen million, three hundred seven thousand, fifty-six".