13324340 has 24 divisors (see below), whose sum is σ = 28947240. Its totient is φ = 5145728.

The previous prime is 13324319. The next prime is 13324361. The reversal of 13324340 is 4342331.

13324340 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (13324319) and next prime (13324361).

It can be written as a sum of positive squares in 4 ways, for example, as 1737124 + 11587216 = 1318^2 + 3404^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10907 + ... + 12066.

It is an arithmetic number, because the mean of its divisors is an integer number (1206135).

Almost surely, 2^13324340 is an apocalyptic number.

13324340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13324340 is an abundant number, since it is smaller than the sum of its proper divisors (15622900).

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

13324340 is a wasteful number, since it uses less digits than its factorization.

13324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23011 (or 23009 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 13324340 is about 3650.2520460922. The cubic root of 13324340 is about 237.0728944296.

Adding to 13324340 its reverse (4342331), we get a palindrome (17666671).

Subtracting from 13324340 its reverse (4342331), we obtain a square (8982009 = 2997²).

The spelling of 13324340 in words is "thirteen million, three hundred twenty-four thousand, three hundred forty".