12009348 has 72 divisors (see below), whose sum is σ = 33266688. Its totient is φ = 3630528.

The previous prime is 12009337. The next prime is 12009367. The reversal of 12009348 is 84390021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31165 + ... + 31547.

Almost surely, 2^12009348 is an apocalyptic number.

12009348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12009348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16633344).

12009348 is an abundant number, since it is smaller than the sum of its proper divisors (21257340).

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

12009348 is a wasteful number, since it uses less digits than its factorization.

12009348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12009348 is about 3465.4506200493. The cubic root of 12009348 is about 229.0022819068.

Adding to 12009348 its reverse (84390021), we get a palindrome (96399369).

The spelling of 12009348 in words is "twelve million, nine thousand, three hundred forty-eight".