16998000 has 80 divisors (see below), whose sum is σ = 54820896. Its totient is φ = 4531200.

The previous prime is 16997999. The next prime is 16998041. The reversal of 16998000 is 89961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4584 + ... + 7416.

Almost surely, 2^16998000 is an apocalyptic number.

16998000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16998000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27410448).

16998000 is an abundant number, since it is smaller than the sum of its proper divisors (37822896).

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

16998000 is a wasteful number, since it uses less digits than its factorization.

16998000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 16998000 is about 4122.8630828588. The cubic root of 16998000 is about 257.1180752131.

The spelling of 16998000 in words is "sixteen million, nine hundred ninety-eight thousand".