13671868 has 48 divisors (see below), whose sum is σ = 29747200. Its totient is φ = 5365440.

The previous prime is 13671863. The next prime is 13671881. The reversal of 13671868 is 86817631.

13671868 is nontrivially palindromic in base 12.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 13671868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671863) 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 15 ways as a sum of consecutive naturals, for example, 16078 + ... + 16906.

Almost surely, 2^13671868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13671868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14873600).

13671868 is an abundant number, since it is smaller than the sum of its proper divisors (16075332).

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

13671868 is a wasteful number, since it uses less digits than its factorization.

13671868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 13671868 is about 3697.5489178644. The cubic root of 13671868 is about 239.1163570373.

The spelling of 13671868 in words is "thirteen million, six hundred seventy-one thousand, eight hundred sixty-eight".