12680242 has 8 divisors (see below), whose sum is σ = 19249776. Its totient is φ = 6263652.

The previous prime is 12680207. The next prime is 12680243. The reversal of 12680242 is 24208621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12680243) 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, 38028 + ... + 38359.

It is an arithmetic number, because the mean of its divisors is an integer number (2406222).

Almost surely, 2^12680242 is an apocalyptic number.

12680242 is a deficient number, since it is larger than the sum of its proper divisors (6569534).

12680242 is an equidigital number, since it uses as much as digits as its factorization.

12680242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76472.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 12680242 is about 3560.9327429762. The cubic root of 12680242 is about 233.1896017300.

Adding to 12680242 its reverse (24208621), we get a palindrome (36888863).

The spelling of 12680242 in words is "twelve million, six hundred eighty thousand, two hundred forty-two".