12440212 has 24 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 5855040.

The previous prime is 12440203. The next prime is 12440221. The reversal of 12440212 is 21204421.

It is an interprime number because it is at equal distance from previous prime (12440203) and next prime (12440221).

It is a congruent number.

It is an unprimeable number.

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, 14088 + ... + 14944.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^12440212 is an apocalyptic number.

It is an amenable number.

12440212 is a deficient number, since it is larger than the sum of its proper divisors (10622828).

12440212 is a wasteful number, since it uses less digits than its factorization.

12440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 12440212 is about 3527.0684711244. The cubic root of 12440212 is about 231.7088350915.

Adding to 12440212 its reverse (21204421), we get a palindrome (33644633).

The spelling of 12440212 in words is "twelve million, four hundred forty thousand, two hundred twelve".