11718198 has 24 divisors (see below), whose sum is σ = 25459200. Its totient is φ = 3895344.

The previous prime is 11718191. The next prime is 11718199. The reversal of 11718198 is 89181711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11718191) 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 11 ways as a sum of consecutive naturals, for example, 8523 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (1060800).

Almost surely, 2^11718198 is an apocalyptic number.

11718198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11718198 is an abundant number, since it is smaller than the sum of its proper divisors (13741002).

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

11718198 is a wasteful number, since it uses less digits than its factorization.

11718198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796 (or 1793 counting only the distinct ones).

The product of its digits is 4032, while the sum is 36.

The square root of 11718198 is about 3423.1853586974. The cubic root of 11718198 is about 227.1365076460.

The spelling of 11718198 in words is "eleven million, seven hundred eighteen thousand, one hundred ninety-eight".