12240132 has 12 divisors (see below), whose sum is σ = 28560336. Its totient is φ = 4080040.

The previous prime is 12240131. The next prime is 12240157. The reversal of 12240132 is 23104221.

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

It is not an unprimeable number, because it can be changed into a prime (12240131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509994 + ... + 510017.

It is an arithmetic number, because the mean of its divisors is an integer number (2380028).

Almost surely, 2^12240132 is an apocalyptic number.

12240132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12240132 is an abundant number, since it is smaller than the sum of its proper divisors (16320204).

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

12240132 is a wasteful number, since it uses less digits than its factorization.

12240132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020018 (or 1020016 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12240132 is about 3498.5900017007. The cubic root of 12240132 is about 230.4598989469.

Adding to 12240132 its reverse (23104221), we get a palindrome (35344353).

The spelling of 12240132 in words is "twelve million, two hundred forty thousand, one hundred thirty-two".