12858238 has 8 divisors (see below), whose sum is σ = 19575432. Its totient is φ = 6333096.

The previous prime is 12858233. The next prime is 12858257. The reversal of 12858238 is 83285821.

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

It is a junction number, because it is equal to n+sod(n) for n = 12858197 and 12858206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47845 + ... + 48112.

It is an arithmetic number, because the mean of its divisors is an integer number (2446929).

Almost surely, 2^12858238 is an apocalyptic number.

12858238 is a deficient number, since it is larger than the sum of its proper divisors (6717194).

12858238 is an equidigital number, since it uses as much as digits as its factorization.

12858238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96026.

The product of its digits is 30720, while the sum is 37.

The square root of 12858238 is about 3585.8385351268. The cubic root of 12858238 is about 234.2756510011.

The spelling of 12858238 in words is "twelve million, eight hundred fifty-eight thousand, two hundred thirty-eight".