13244340 has 48 divisors (see below), whose sum is σ = 37618560. Its totient is φ = 3480960.

The previous prime is 13244327. The next prime is 13244351. The reversal of 13244340 is 4344231.

13244340 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 2706 + ... + 5814.

It is an arithmetic number, because the mean of its divisors is an integer number (783720).

Almost surely, 2^13244340 is an apocalyptic number.

13244340 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 13244340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18809280).

13244340 is an abundant number, since it is smaller than the sum of its proper divisors (24374220).

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

13244340 is a wasteful number, since it uses less digits than its factorization.

13244340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192 (or 3190 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13244340 is about 3639.2774008036. The cubic root of 13244340 is about 236.5974758613.

Adding to 13244340 its reverse (4344231), we get a palindrome (17588571).

The spelling of 13244340 in words is "thirteen million, two hundred forty-four thousand, three hundred forty".