13668258 has 32 divisors (see below), whose sum is σ = 29399040. Its totient is φ = 4222800.

The previous prime is 13668257. The next prime is 13668269. The reversal of 13668258 is 85286631.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13668253) 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 15 ways as a sum of consecutive naturals, for example, 4083 + ... + 6633.

It is an arithmetic number, because the mean of its divisors is an integer number (918720).

Almost surely, 2^13668258 is an apocalyptic number.

13668258 is an abundant number, since it is smaller than the sum of its proper divisors (15730782).

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

13668258 is a wasteful number, since it uses less digits than its factorization.

13668258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its digits is 69120, while the sum is 39.

The square root of 13668258 is about 3697.0607244134. The cubic root of 13668258 is about 239.0953092908.

The spelling of 13668258 in words is "thirteen million, six hundred sixty-eight thousand, two hundred fifty-eight".