13309888 has 14 divisors (see below), whose sum is σ = 26411936. Its totient is φ = 6654912.

The previous prime is 13309853. The next prime is 13309889. The reversal of 13309888 is 88890331.

It is a self number, because there is not a number n which added to its sum of digits gives 13309888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13309889) 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 as a sum of consecutive naturals, namely, 103920 + ... + 104047.

Almost surely, 2^13309888 is an apocalyptic number.

It is an amenable number.

13309888 is a deficient number, since it is larger than the sum of its proper divisors (13102048).

13309888 is an equidigital number, since it uses as much as digits as its factorization.

13309888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207979 (or 207969 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 13309888 is about 3648.2719196902. The cubic root of 13309888 is about 236.9871511725.

The spelling of 13309888 in words is "thirteen million, three hundred nine thousand, eight hundred eighty-eight".