13508340 has 48 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 3575680.

The previous prime is 13508329. The next prime is 13508357. The reversal of 13508340 is 4380531.

It is a self number, because there is not a number n which added to its sum of digits gives 13508340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8185 + ... + 9695.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^13508340 is an apocalyptic number.

13508340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13508340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19051200).

13508340 is an abundant number, since it is smaller than the sum of its proper divisors (24594060).

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

13508340 is a wasteful number, since it uses less digits than its factorization.

13508340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13508340 is about 3675.3693691927. The cubic root of 13508340 is about 238.1591807562.

Adding to 13508340 its reverse (4380531), we get a palindrome (17888871).

The spelling of 13508340 in words is "thirteen million, five hundred eight thousand, three hundred forty".