13818684 has 72 divisors (see below), whose sum is σ = 36703744. Its totient is φ = 4039200.

The previous prime is 13818667. The next prime is 13818689. The reversal of 13818684 is 48681831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13818689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44859 + ... + 45165.

Almost surely, 2^13818684 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 13818684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18351872).

13818684 is an abundant number, since it is smaller than the sum of its proper divisors (22885060).

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

13818684 is a wasteful number, since it uses less digits than its factorization.

13818684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 354 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 13818684 is about 3717.3490554426. The cubic root of 13818684 is about 239.9692321669.

The spelling of 13818684 in words is "thirteen million, eight hundred eighteen thousand, six hundred eighty-four".