12403282 has 4 divisors (see below), whose sum is σ = 18604926. Its totient is φ = 6201640.

The previous prime is 12403273. The next prime is 12403283. The reversal of 12403282 is 28230421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11498881 + 904401 = 3391^2 + 951^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12403283) by changing a digit.

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 as a sum of consecutive naturals, namely, 3100819 + ... + 3100822.

Almost surely, 2^12403282 is an apocalyptic number.

12403282 is a deficient number, since it is larger than the sum of its proper divisors (6201644).

12403282 is an equidigital number, since it uses as much as digits as its factorization.

12403282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201643.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12403282 is about 3521.8293541851. The cubic root of 12403282 is about 231.4793242998.

It can be divided in two parts, 12 and 403282, that multiplied together give a palindrome (4839384).

The spelling of 12403282 in words is "twelve million, four hundred three thousand, two hundred eighty-two".