12452784 has 40 divisors (see below), whose sum is σ = 32704752. Its totient is φ = 4081920.

The previous prime is 12452779. The next prime is 12452833. The reversal of 12452784 is 48725421.

It is an unprimeable number.

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, 802 + ... + 5054.

Almost surely, 2^12452784 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 12452784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16352376).

12452784 is an abundant number, since it is smaller than the sum of its proper divisors (20251968).

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

12452784 is a wasteful number, since it uses less digits than its factorization.

12452784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4319 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 12452784 is about 3528.8502376837. The cubic root of 12452784 is about 231.7868633095.

The spelling of 12452784 in words is "twelve million, four hundred fifty-two thousand, seven hundred eighty-four".