13316868 has 18 divisors (see below), whose sum is σ = 33662174. Its totient is φ = 4438944.

The previous prime is 13316867. The next prime is 13316873. The reversal of 13316868 is 86861331.

It can be written as a sum of positive squares in only one way, i.e., 8573184 + 4743684 = 2928^2 + 2178^2 .

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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: 369913 = 13316868 / (1 + 3 + 3 + 1 + 6 + 8 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (13316867) 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, 184921 + ... + 184992.

Almost surely, 2^13316868 is an apocalyptic number.

13316868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13316868 is an abundant number, since it is smaller than the sum of its proper divisors (20345306).

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

13316868 is a wasteful number, since it uses less digits than its factorization.

13316868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369923 (or 369918 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 13316868 is about 3649.2284115961. The cubic root of 13316868 is about 237.0285710361.

The spelling of 13316868 in words is "thirteen million, three hundred sixteen thousand, eight hundred sixty-eight".