12242724 has 24 divisors (see below), whose sum is σ = 30764160. Its totient is φ = 3766944.

The previous prime is 12242719. The next prime is 12242729. The reversal of 12242724 is 42724221.

It is an interprime number because it is at equal distance from previous prime (12242719) and next prime (12242729).

It is a junction number, because it is equal to n+sod(n) for n = 12242694 and 12242703.

It is not an unprimeable number, because it can be changed into a prime (12242729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39084 + ... + 39395.

It is an arithmetic number, because the mean of its divisors is an integer number (1281840).

Almost surely, 2^12242724 is an apocalyptic number.

It is an amenable number.

12242724 is an abundant number, since it is smaller than the sum of its proper divisors (18521436).

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

12242724 is a wasteful number, since it uses less digits than its factorization.

12242724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78499 (or 78497 counting only the distinct ones).

The product of its digits is 1792, while the sum is 24.

The square root of 12242724 is about 3498.9604170382. The cubic root of 12242724 is about 230.4761653809.

Adding to 12242724 its reverse (42724221), we get a palindrome (54966945).

The spelling of 12242724 in words is "twelve million, two hundred forty-two thousand, seven hundred twenty-four".