12884224 has 18 divisors (see below), whose sum is σ = 25718630. Its totient is φ = 6441984.

The previous prime is 12884203. The next prime is 12884233. The reversal of 12884224 is 42248821.

It can be written as a sum of positive squares in only one way, i.e., 6969600 + 5914624 = 2640^2 + 2432^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24909 + ... + 25420.

Almost surely, 2^12884224 is an apocalyptic number.

It is an amenable number.

12884224 is a deficient number, since it is larger than the sum of its proper divisors (12834406).

12884224 is an frugal number, since it uses more digits than its factorization.

12884224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50345 (or 50331 counting only the distinct ones).

The product of its digits is 8192, while the sum is 31.

The square root of 12884224 is about 3589.4601265371. The cubic root of 12884224 is about 234.4333654702.

The spelling of 12884224 in words is "twelve million, eight hundred eighty-four thousand, two hundred twenty-four".