13240452 has 12 divisors (see below), whose sum is σ = 30894416. Its totient is φ = 4413480.

The previous prime is 13240421. The next prime is 13240453. The reversal of 13240452 is 25404231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13240453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551674 + ... + 551697.

Almost surely, 2^13240452 is an apocalyptic number.

13240452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13240452 is an abundant number, since it is smaller than the sum of its proper divisors (17653964).

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

13240452 is a wasteful number, since it uses less digits than its factorization.

13240452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103378 (or 1103376 counting only the distinct ones).

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

The square root of 13240452 is about 3638.7431896192. The cubic root of 13240452 is about 236.5743217941.

Adding to 13240452 its reverse (25404231), we get a palindrome (38644683).

The spelling of 13240452 in words is "thirteen million, two hundred forty thousand, four hundred fifty-two".