12324540 has 72 divisors (see below), whose sum is σ = 36484560. Its totient is φ = 3108096.

The previous prime is 12324497. The next prime is 12324607. The reversal of 12324540 is 4542321.

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 23 ways as a sum of consecutive naturals, for example, 21376 + ... + 21944.

It is an arithmetic number, because the mean of its divisors is an integer number (506730).

Almost surely, 2^12324540 is an apocalyptic number.

12324540 is a gapful number since it is divisible by the number (10) 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 12324540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18242280).

12324540 is an abundant number, since it is smaller than the sum of its proper divisors (24160020).

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

12324540 is a wasteful number, since it uses less digits than its factorization.

12324540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12324540 is about 3510.6324216585. The cubic root of 12324540 is about 230.9884366694.

Adding to 12324540 its reverse (4542321), we get a palindrome (16866861).

The spelling of 12324540 in words is "twelve million, three hundred twenty-four thousand, five hundred forty".