12009446 has 16 divisors (see below), whose sum is σ = 19141920. Its totient is φ = 5631360.

The previous prime is 12009443. The next prime is 12009469. The reversal of 12009446 is 64490021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13895 + ... + 14733.

It is an arithmetic number, because the mean of its divisors is an integer number (1196370).

Almost surely, 2^12009446 is an apocalyptic number.

12009446 is a deficient number, since it is larger than the sum of its proper divisors (7132474).

12009446 is a wasteful number, since it uses less digits than its factorization.

12009446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 12009446 is about 3465.4647595957. The cubic root of 12009446 is about 229.0029048150.

Adding to 12009446 its reverse (64490021), we get a palindrome (76499467).

The spelling of 12009446 in words is "twelve million, nine thousand, four hundred forty-six".