12858198 has 16 divisors (see below), whose sum is σ = 26042880. Its totient is φ = 4231656.

The previous prime is 12858191. The next prime is 12858217. The reversal of 12858198 is 89185821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858191) 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 7 ways as a sum of consecutive naturals, for example, 13090 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (1627680).

Almost surely, 2^12858198 is an apocalyptic number.

12858198 is an abundant number, since it is smaller than the sum of its proper divisors (13184682).

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

12858198 is a wasteful number, since it uses less digits than its factorization.

12858198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27211.

The product of its digits is 46080, while the sum is 42.

The square root of 12858198 is about 3585.8329576264. The cubic root of 12858198 is about 234.2754080691.

The spelling of 12858198 in words is "twelve million, eight hundred fifty-eight thousand, one hundred ninety-eight".