12240668 has 48 divisors (see below), whose sum is σ = 24766560. Its totient is φ = 5241600.

The previous prime is 12240667. The next prime is 12240677. The reversal of 12240668 is 86604221.

12240668 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 12240668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240667) 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 15 ways as a sum of consecutive naturals, for example, 67538 + ... + 67718.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^12240668 is an apocalyptic number.

It is an amenable number.

12240668 is an abundant number, since it is smaller than the sum of its proper divisors (12525892).

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

12240668 is a wasteful number, since it uses less digits than its factorization.

12240668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12240668 is about 3498.6666031504. Note that the first 4 decimals coincide. The cubic root of 12240668 is about 230.4632628731.

Adding to 12240668 its reverse (86604221), we get a palindrome (98844889).

The spelling of 12240668 in words is "twelve million, two hundred forty thousand, six hundred sixty-eight".