13361868 has 96 divisors (see below), whose sum is σ = 38635520. Its totient is φ = 3965760.

The previous prime is 13361861. The next prime is 13361879. The reversal of 13361868 is 86816331.

13361868 is a `hidden beast` number, since 1 + 33 + 618 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13361861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43371 + ... + 43677.

Almost surely, 2^13361868 is an apocalyptic number.

13361868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13361868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19317760).

13361868 is an abundant number, since it is smaller than the sum of its proper divisors (25273652).

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

13361868 is a wasteful number, since it uses less digits than its factorization.

13361868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 356 counting only the distinct ones).

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

The square root of 13361868 is about 3655.3888985989. The cubic root of 13361868 is about 237.2952577123.

It can be divided in two parts, 133 and 61868, that added together give a square (62001 = 249²).

The spelling of 13361868 in words is "thirteen million, three hundred sixty-one thousand, eight hundred sixty-eight".