12009504 has 48 divisors (see below), whose sum is σ = 33953472. Its totient is φ = 3694848.

The previous prime is 12009499. The next prime is 12009521. The reversal of 12009504 is 40590021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3564 + ... + 6059.

It is an arithmetic number, because the mean of its divisors is an integer number (707364).

Almost surely, 2^12009504 is an apocalyptic number.

It is an amenable number.

12009504 is an abundant number, since it is smaller than the sum of its proper divisors (21943968).

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

12009504 is a wasteful number, since it uses less digits than its factorization.

12009504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9649 (or 9641 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 12009504 is about 3465.4731278716. The cubic root of 12009504 is about 229.0032734733.

Adding to 12009504 its reverse (40590021), we get a palindrome (52599525).

The spelling of 12009504 in words is "twelve million, nine thousand, five hundred four".