12516324 has 48 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 3942400.

The previous prime is 12516299. The next prime is 12516341. The reversal of 12516324 is 42361521.

It is a junction number, because it is equal to n+sod(n) for n = 12516294 and 12516303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27652 + ... + 28100.

It is an arithmetic number, because the mean of its divisors is an integer number (642600).

Almost surely, 2^12516324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12516324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15422400).

12516324 is an abundant number, since it is smaller than the sum of its proper divisors (18328476).

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

12516324 is a wasteful number, since it uses less digits than its factorization.

12516324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 12516324 is about 3537.8417149443. The cubic root of 12516324 is about 232.1804234635.

Adding to 12516324 its reverse (42361521), we get a palindrome (54877845).

The spelling of 12516324 in words is "twelve million, five hundred sixteen thousand, three hundred twenty-four".