13240524 has 48 divisors (see below), whose sum is σ = 34626816. Its totient is φ = 3902400.

The previous prime is 13240523. The next prime is 13240529. The reversal of 13240524 is 42504231.

It is a super-2 number, since 2×13240524² = 350622951589152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13240524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240523) 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, 3529 + ... + 6239.

It is an arithmetic number, because the mean of its divisors is an integer number (721392).

Almost surely, 2^13240524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13240524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17313408).

13240524 is an abundant number, since it is smaller than the sum of its proper divisors (21386292).

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

13240524 is a wasteful number, since it uses less digits than its factorization.

13240524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766 (or 2764 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13240524 is about 3638.7530831316. The cubic root of 13240524 is about 236.5747506143.

Adding to 13240524 its reverse (42504231), we get a palindrome (55744755).

The spelling of 13240524 in words is "thirteen million, two hundred forty thousand, five hundred twenty-four".