16998198 has 96 divisors (see below), whose sum is σ = 44323200. Its totient is φ = 4306176.

The previous prime is 16998197. The next prime is 16998211. The reversal of 16998198 is 89189961.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 16998198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16998197) 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 47 ways as a sum of consecutive naturals, for example, 94873 + ... + 95051.

It is an arithmetic number, because the mean of its divisors is an integer number (461700).

Almost surely, 2^16998198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16998198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22161600).

16998198 is an abundant number, since it is smaller than the sum of its proper divisors (27325002).

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

16998198 is a wasteful number, since it uses less digits than its factorization.

16998198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 227 counting only the distinct ones).

The product of its digits is 279936, while the sum is 51.

The square root of 16998198 is about 4122.8870952283. The cubic root of 16998198 is about 257.1190735498.

The spelling of 16998198 in words is "sixteen million, nine hundred ninety-eight thousand, one hundred ninety-eight".