12242544 has 20 divisors (see below), whose sum is σ = 31626696. Its totient is φ = 4080832.

The previous prime is 12242539. The next prime is 12242557. The reversal of 12242544 is 44524221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 3 ways as a sum of consecutive naturals, for example, 127479 + ... + 127574.

Almost surely, 2^12242544 is an apocalyptic number.

It is an amenable number.

12242544 is an abundant number, since it is smaller than the sum of its proper divisors (19384152).

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

12242544 is a wasteful number, since it uses less digits than its factorization.

12242544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255064 (or 255058 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 12242544 is about 3498.9346950179. The cubic root of 12242544 is about 230.4750358416.

Adding to 12242544 its reverse (44524221), we get a palindrome (56766765).

It can be divided in two parts, 12 and 242544, that added together give a triangular number (242556 = T₆₉₆).

The spelling of 12242544 in words is "twelve million, two hundred forty-two thousand, five hundred forty-four".