12006436 has 18 divisors (see below), whose sum is σ = 22753122. Its totient is φ = 5541120.

The previous prime is 12006433. The next prime is 12006443. The reversal of 12006436 is 63460021.

It can be written as a sum of positive squares in 3 ways, for example, as 62500 + 11943936 = 250^2 + 3456^2 .

It is not an unprimeable number, because it can be changed into a prime (12006431) 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 in 5 ways as a sum of consecutive naturals, for example, 8205 + ... + 9556.

Almost surely, 2^12006436 is an apocalyptic number.

It is an amenable number.

12006436 is a deficient number, since it is larger than the sum of its proper divisors (10746686).

12006436 is a wasteful number, since it uses less digits than its factorization.

12006436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17791 (or 17776 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 12006436 is about 3465.0304471967. The cubic root of 12006436 is about 228.9837710892.

Adding to 12006436 its reverse (63460021), we get a palindrome (75466457).

The spelling of 12006436 in words is "twelve million, six thousand, four hundred thirty-six".