12240452 has 12 divisors (see below), whose sum is σ = 24480960. Its totient is φ = 5245896.

The previous prime is 12240433. The next prime is 12240457. The reversal of 12240452 is 25404221.

It is a happy number.

12240452 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12240457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218552 + ... + 218607.

It is an arithmetic number, because the mean of its divisors is an integer number (2040080).

Almost surely, 2^12240452 is an apocalyptic number.

It is an amenable number.

12240452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12240452 is a wasteful number, since it uses less digits than its factorization.

12240452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437170 (or 437168 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 12240452 is about 3498.6357341112. The cubic root of 12240452 is about 230.4619072729.

Adding to 12240452 its reverse (25404221), we get a palindrome (37644673).

The spelling of 12240452 in words is "twelve million, two hundred forty thousand, four hundred fifty-two".