12239904 has 48 divisors (see below), whose sum is σ = 32689440. Its totient is φ = 4008960.

The previous prime is 12239897. The next prime is 12239911. The reversal of 12239904 is 40993221.

It is an interprime number because it is at equal distance from previous prime (12239897) and next prime (12239911).

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

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, 4584 + ... + 6744.

It is an arithmetic number, because the mean of its divisors is an integer number (681030).

Almost surely, 2^12239904 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 12239904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16344720).

12239904 is an abundant number, since it is smaller than the sum of its proper divisors (20449536).

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

12239904 is a wasteful number, since it uses less digits than its factorization.

12239904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12239904 is about 3498.5574169935. The cubic root of 12239904 is about 230.4584679933.

The spelling of 12239904 in words is "twelve million, two hundred thirty-nine thousand, nine hundred four".