12387024 has 90 divisors (see below), whose sum is σ = 37611990. Its totient is φ = 3803904.

The previous prime is 12387019. The next prime is 12387029. The reversal of 12387024 is 42078321.

It is an interprime number because it is at equal distance from previous prime (12387019) and next prime (12387029).

It can be written as a sum of positive squares in 3 ways, for example, as 360000 + 12027024 = 600^2 + 3468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387029) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24082 + ... + 24590.

It is an arithmetic number, because the mean of its divisors is an integer number (417911).

Almost surely, 2^12387024 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 12387024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18805995).

12387024 is an abundant number, since it is smaller than the sum of its proper divisors (25224966).

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

12387024 is a wasteful number, since it uses less digits than its factorization.

12387024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12387024 is about 3519.5204218757. The cubic root of 12387024 is about 231.3781404255.

It can be divided in two parts, 1 and 2387024, that added together give a square (2387025 = 1545²).

The spelling of 12387024 in words is "twelve million, three hundred eighty-seven thousand, twenty-four".