12804438 has 8 divisors (see below), whose sum is σ = 25608888. Its totient is φ = 4268144.

The previous prime is 12804433. The next prime is 12804439. The reversal of 12804438 is 83440821.

It is a sphenic number, since it is the product of 3 distinct primes.

12804438 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804433) 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 3 ways as a sum of consecutive naturals, for example, 1067031 + ... + 1067042.

It is an arithmetic number, because the mean of its divisors is an integer number (3201111).

Almost surely, 2^12804438 is an apocalyptic number.

12804438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12804438 is a wasteful number, since it uses less digits than its factorization.

12804438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134078.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 12804438 is about 3578.3289396030. The cubic root of 12804438 is about 233.9484509138.

The spelling of 12804438 in words is "twelve million, eight hundred four thousand, four hundred thirty-eight".