12398118 has 16 divisors (see below), whose sum is σ = 24862896. Its totient is φ = 4121600.

The previous prime is 12398063. The next prime is 12398119. The reversal of 12398118 is 81189321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12398119) 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 7 ways as a sum of consecutive naturals, for example, 171 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (1553931).

Almost surely, 2^12398118 is an apocalyptic number.

12398118 is an abundant number, since it is smaller than the sum of its proper divisors (12464778).

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

12398118 is a wasteful number, since it uses less digits than its factorization.

12398118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559.

The product of its digits is 3456, while the sum is 33.

The square root of 12398118 is about 3521.0961361485. The cubic root of 12398118 is about 231.4471950305.

The spelling of 12398118 in words is "twelve million, three hundred ninety-eight thousand, one hundred eighteen".