12239808 has 84 divisors (see below), whose sum is σ = 37700712. Its totient is φ = 3494400.

The previous prime is 12239791. The next prime is 12239809. The reversal of 12239808 is 80893221.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12239809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8758 + ... + 10058.

It is an arithmetic number, because the mean of its divisors is an integer number (448818).

Almost surely, 2^12239808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12239808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18850356).

12239808 is an abundant number, since it is smaller than the sum of its proper divisors (25460904).

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

12239808 is a wasteful number, since it uses less digits than its factorization.

12239808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 12239808 is about 3498.5436970259. The cubic root of 12239808 is about 230.4578654812.

The spelling of 12239808 in words is "twelve million, two hundred thirty-nine thousand, eight hundred eight".