13344340 has 24 divisors (see below), whose sum is σ = 28554120. Its totient is φ = 5236608.

The previous prime is 13344313. The next prime is 13344341. The reversal of 13344340 is 4344331.

It can be written as a sum of positive squares in 4 ways, for example, as 470596 + 12873744 = 686^2 + 3588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13344341) 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, 5235 + ... + 7354.

It is an arithmetic number, because the mean of its divisors is an integer number (1189755).

Almost surely, 2^13344340 is an apocalyptic number.

13344340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13344340 is an abundant number, since it is smaller than the sum of its proper divisors (15209780).

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

13344340 is a wasteful number, since it uses less digits than its factorization.

13344340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12651 (or 12649 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 13344340 is about 3652.9905556954. The cubic root of 13344340 is about 237.1914515848.

Adding to 13344340 its reverse (4344331), we get a palindrome (17688671).

Subtracting from 13344340 its reverse (4344331), we obtain a palindrome (9000009).

The spelling of 13344340 in words is "thirteen million, three hundred forty-four thousand, three hundred forty".