12240648 has 96 divisors (see below), whose sum is σ = 38376000. Its totient is φ = 3452544.

The previous prime is 12240643. The next prime is 12240659. The reversal of 12240648 is 84604221.

12240648 is a `hidden beast` number, since 12 + 2 + 4 + 0 + 648 = 666.

It is a super-3 number, since 3×12240648³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12240643) 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 23 ways as a sum of consecutive naturals, for example, 75015 + ... + 75177.

It is an arithmetic number, because the mean of its divisors is an integer number (399750).

Almost surely, 2^12240648 is an apocalyptic number.

12240648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12240648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19188000).

12240648 is an abundant number, since it is smaller than the sum of its proper divisors (26135352).

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

12240648 is a wasteful number, since it uses less digits than its factorization.

12240648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 12240648 is about 3498.6637449175. The cubic root of 12240648 is about 230.4631373552.

Adding to 12240648 its reverse (84604221), we get a palindrome (96844869).

The spelling of 12240648 in words is "twelve million, two hundred forty thousand, six hundred forty-eight".