13398688 has 12 divisors (see below), whose sum is σ = 26378730. Its totient is φ = 6699328.

The previous prime is 13398661. The next prime is 13398689. The reversal of 13398688 is 88689331.

13398688 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in only one way, i.e., 6906384 + 6492304 = 2628^2 + 2548^2 .

It is not an unprimeable number, because it can be changed into a prime (13398689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209323 + ... + 209386.

Almost surely, 2^13398688 is an apocalyptic number.

It is an amenable number.

13398688 is a deficient number, since it is larger than the sum of its proper divisors (12980042).

13398688 is an equidigital number, since it uses as much as digits as its factorization.

13398688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418719 (or 418711 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 13398688 is about 3660.4218336143. The cubic root of 13398688 is about 237.5130216314.

The spelling of 13398688 in words is "thirteen million, three hundred ninety-eight thousand, six hundred eighty-eight".