13818340 has 24 divisors (see below), whose sum is σ = 29111040. Its totient is φ = 5509728.

The previous prime is 13818323. The next prime is 13818341. The reversal of 13818340 is 4381831.

It is a junction number, because it is equal to n+sod(n) for n = 13818299 and 13818308.

It is not an unprimeable number, because it can be changed into a prime (13818341) 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 7 ways as a sum of consecutive naturals, for example, 6669 + ... + 8491.

It is an arithmetic number, because the mean of its divisors is an integer number (1212960).

Almost surely, 2^13818340 is an apocalyptic number.

13818340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13818340 is an abundant number, since it is smaller than the sum of its proper divisors (15292700).

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

13818340 is a wasteful number, since it uses less digits than its factorization.

13818340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 13818340 is about 3717.3027856229. The cubic root of 13818340 is about 239.9672408991.

The spelling of 13818340 in words is "thirteen million, eight hundred eighteen thousand, three hundred forty".