13071680 has 28 divisors (see below), whose sum is σ = 31127700. Its totient is φ = 5228544.

The previous prime is 13071673. The next prime is 13071683. The reversal of 13071680 is 8617031.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 6270016 = 2608^2 + 2504^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13071683) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20105 + ... + 20744.

Almost surely, 2^13071680 is an apocalyptic number.

13071680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13071680 is an abundant number, since it is smaller than the sum of its proper divisors (18056020).

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

13071680 is an equidigital number, since it uses as much as digits as its factorization.

13071680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40866 (or 40856 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 13071680 is about 3615.4778384053. The cubic root of 13071680 is about 235.5648401599.

The spelling of 13071680 in words is "thirteen million, seventy-one thousand, six hundred eighty".