13660288 has 16 divisors (see below), whose sum is σ = 27214110. Its totient is φ = 6830080.

The previous prime is 13660277. The next prime is 13660291. The reversal of 13660288 is 88206631.

It can be written as a sum of positive squares in only one way, i.e., 10810944 + 2849344 = 3288^2 + 1688^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53233 + ... + 53488.

Almost surely, 2^13660288 is an apocalyptic number.

It is an amenable number.

13660288 is a deficient number, since it is larger than the sum of its proper divisors (13553822).

13660288 is an equidigital number, since it uses as much as digits as its factorization.

13660288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106735 (or 106723 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 13660288 is about 3695.9826839421. The cubic root of 13660288 is about 239.0488278709.

The spelling of 13660288 in words is "thirteen million, six hundred sixty thousand, two hundred eighty-eight".