12544016 has 40 divisors (see below), whose sum is σ = 25712640. Its totient is φ = 5916416.

The previous prime is 12544001. The next prime is 12544019. The reversal of 12544016 is 61044521.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 12543982 and 12544000.

It is not an unprimeable number, because it can be changed into a prime (12544019) 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 7 ways as a sum of consecutive naturals, for example, 32561 + ... + 32943.

It is an arithmetic number, because the mean of its divisors is an integer number (642816).

Almost surely, 2^12544016 is an apocalyptic number.

12544016 is a gapful number since it is divisible by the number (16) 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 12544016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12856320).

12544016 is an abundant number, since it is smaller than the sum of its proper divisors (13168624).

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

12544016 is a wasteful number, since it uses less digits than its factorization.

12544016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12544016 is about 3541.7532381576. The cubic root of 12544016 is about 232.3515281314.

Adding to 12544016 its reverse (61044521), we get a palindrome (73588537).

The spelling of 12544016 in words is "twelve million, five hundred forty-four thousand, sixteen".