13340205 has 24 divisors (see below), whose sum is σ = 23208120. Its totient is φ = 7088640.

The previous prime is 13340179. The next prime is 13340209. The reversal of 13340205 is 50204331.

It can be written as a sum of positive squares in 4 ways, for example, as 10404 + 13329801 = 102^2 + 3651^2 .

It is not a de Polignac number, because 13340205 - 2¹⁰ = 13339181 is a prime.

It is a super-2 number, since 2×13340205² = 355922138884050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340209) 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 23 ways as a sum of consecutive naturals, for example, 23161 + ... + 23729.

It is an arithmetic number, because the mean of its divisors is an integer number (967005).

Almost surely, 2^13340205 is an apocalyptic number.

13340205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13340205 is a deficient number, since it is larger than the sum of its proper divisors (9867915).

13340205 is a wasteful number, since it uses less digits than its factorization.

13340205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13340205 is about 3652.4245372081. The cubic root of 13340205 is about 237.1669496118.

Adding to 13340205 its reverse (50204331), we get a palindrome (63544536).

It can be divided in two parts, 1334020 and 5, that added together give a square (1334025 = 1155²).

The spelling of 13340205 in words is "thirteen million, three hundred forty thousand, two hundred five".