13353240 has 64 divisors (see below), whose sum is σ = 40320000. Its totient is φ = 3537792.

The previous prime is 13353227. The next prime is 13353247. The reversal of 13353240 is 4235331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13353247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26511 + ... + 27009.

It is an arithmetic number, because the mean of its divisors is an integer number (630000).

Almost surely, 2^13353240 is an apocalyptic number.

13353240 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 13353240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20160000).

13353240 is an abundant number, since it is smaller than the sum of its proper divisors (26966760).

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

13353240 is a wasteful number, since it uses less digits than its factorization.

13353240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 13353240 is about 3654.2085326374. The cubic root of 13353240 is about 237.2441714341.

Adding to 13353240 its reverse (4235331), we get a palindrome (17588571).

The spelling of 13353240 in words is "thirteen million, three hundred fifty-three thousand, two hundred forty".