12280242 has 32 divisors (see below), whose sum is σ = 26587008. Its totient is φ = 3758976.

The previous prime is 12280223. The next prime is 12280249. The reversal of 12280242 is 24208221.

It is a happy number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12280249) 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, 24163 + ... + 24665.

It is an arithmetic number, because the mean of its divisors is an integer number (830844).

Almost surely, 2^12280242 is an apocalyptic number.

12280242 is an abundant number, since it is smaller than the sum of its proper divisors (14306766).

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

12280242 is a wasteful number, since it uses less digits than its factorization.

12280242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 12280242 is about 3504.3176225907. The cubic root of 12280242 is about 230.7113577783.

Adding to 12280242 its reverse (24208221), we get a palindrome (36488463).

The spelling of 12280242 in words is "twelve million, two hundred eighty thousand, two hundred forty-two".