12009936 has 40 divisors (see below), whose sum is σ = 31249984. Its totient is φ = 3974400.

The previous prime is 12009923. The next prime is 12009937. The reversal of 12009936 is 63990021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009937) 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 7 ways as a sum of consecutive naturals, for example, 6420 + ... + 8076.

Almost surely, 2^12009936 is an apocalyptic number.

12009936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12009936 is an abundant number, since it is smaller than the sum of its proper divisors (19240048).

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

12009936 is a wasteful number, since it uses less digits than its factorization.

12009936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 12009936 is about 3465.5354564627. The cubic root of 12009936 is about 229.0060193049.

Adding to 12009936 its reverse (63990021), we get a palindrome (75999957).

The spelling of 12009936 in words is "twelve million, nine thousand, nine hundred thirty-six".