12320336 has 40 divisors (see below), whose sum is σ = 27956544. Its totient is φ = 5149440.

The previous prime is 12320309. The next prime is 12320339. The reversal of 12320336 is 63302321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3251 + ... + 5933.

Almost surely, 2^12320336 is an apocalyptic number.

12320336 is a gapful number since it is divisible by the number (16) 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 12320336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13978272).

12320336 is an abundant number, since it is smaller than the sum of its proper divisors (15636208).

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

12320336 is a wasteful number, since it uses less digits than its factorization.

12320336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 12320336 is about 3510.0336180726. The cubic root of 12320336 is about 230.9621696762.

Adding to 12320336 its reverse (63302321), we get a palindrome (75622657).

The spelling of 12320336 in words is "twelve million, three hundred twenty thousand, three hundred thirty-six".