13336668 has 18 divisors (see below), whose sum is σ = 33712224. Its totient is φ = 4445544.

The previous prime is 13336657. The next prime is 13336669. The reversal of 13336668 is 86663331.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 370463 = 13336668 / (1 + 3 + 3 + 3 + 6 + 6 + 6 + 8).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13336669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 185196 + ... + 185267.

Almost surely, 2^13336668 is an apocalyptic number.

13336668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13336668 is an abundant number, since it is smaller than the sum of its proper divisors (20375556).

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

13336668 is a wasteful number, since it uses less digits than its factorization.

13336668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370473 (or 370468 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 13336668 is about 3651.9403061934. The cubic root of 13336668 is about 237.1459870741.

Adding to 13336668 its reverse (86663331), we get a palindrome (99999999).

It can be divided in two parts, 1333 and 6668, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 13336668 in words is "thirteen million, three hundred thirty-six thousand, six hundred sixty-eight".