16620198 has 16 divisors (see below), whose sum is σ = 37989120. Its totient is φ = 4748616.

The previous prime is 16620173. The next prime is 16620209. The reversal of 16620198 is 89102661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197818 + ... + 197901.

It is an arithmetic number, because the mean of its divisors is an integer number (2374320).

Almost surely, 2^16620198 is an apocalyptic number.

16620198 is an abundant number, since it is smaller than the sum of its proper divisors (21368922).

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

16620198 is a wasteful number, since it uses less digits than its factorization.

16620198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395731.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 16620198 is about 4076.7877060254. The cubic root of 16620198 is about 255.1988606422.

The spelling of 16620198 in words is "sixteen million, six hundred twenty thousand, one hundred ninety-eight".