12009452 has 24 divisors (see below), whose sum is σ = 25867296. Its totient is φ = 4750848.

The previous prime is 12009443. The next prime is 12009469. The reversal of 12009452 is 25490021.

It is an unprimeable number.

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, 16133 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (1077804).

Almost surely, 2^12009452 is an apocalyptic number.

It is an amenable number.

12009452 is an abundant number, since it is smaller than the sum of its proper divisors (13857844).

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

12009452 is a wasteful number, since it uses less digits than its factorization.

12009452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33017 (or 33015 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12009452 is about 3465.4656252804. The cubic root of 12009452 is about 229.0029429521.

Adding to 12009452 its reverse (25490021), we get a palindrome (37499473).

The spelling of 12009452 in words is "twelve million, nine thousand, four hundred fifty-two".