12838258 has 4 divisors (see below), whose sum is σ = 19257390. Its totient is φ = 6419128.

The previous prime is 12838253. The next prime is 12838261. The reversal of 12838258 is 85283821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12581209 + 257049 = 3547^2 + 507^2 .

It is not an unprimeable number, because it can be changed into a prime (12838253) 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 as a sum of consecutive naturals, namely, 3209563 + ... + 3209566.

Almost surely, 2^12838258 is an apocalyptic number.

12838258 is a deficient number, since it is larger than the sum of its proper divisors (6419132).

12838258 is an equidigital number, since it uses as much as digits as its factorization.

12838258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419131.

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

The square root of 12838258 is about 3583.0514927921. The cubic root of 12838258 is about 234.1542436444.

The spelling of 12838258 in words is "twelve million, eight hundred thirty-eight thousand, two hundred fifty-eight".