16198918 has 8 divisors (see below), whose sum is σ = 24318360. Its totient is φ = 8092800.

The previous prime is 16198891. The next prime is 16198927. The reversal of 16198918 is 81989161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 673 + ... + 5731.

It is an arithmetic number, because the mean of its divisors is an integer number (3039795).

Almost surely, 2^16198918 is an apocalyptic number.

16198918 is a deficient number, since it is larger than the sum of its proper divisors (8119442).

16198918 is a wasteful number, since it uses less digits than its factorization.

16198918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662.

The product of its digits is 31104, while the sum is 43.

The square root of 16198918 is about 4024.7879447245. The cubic root of 16198918 is about 253.0241661679.

The spelling of 16198918 in words is "sixteen million, one hundred ninety-eight thousand, nine hundred eighteen".