16443198 has 24 divisors (see below), whose sum is σ = 35912448. Its totient is φ = 5437152.

The previous prime is 16443191. The next prime is 16443209. The reversal of 16443198 is 89134461.

16443198 is a `hidden beast` number, since 1 + 644 + 3 + 1 + 9 + 8 = 666.

It is a super-3 number, since 3×16443198³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16443191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1311 + ... + 5882.

It is an arithmetic number, because the mean of its divisors is an integer number (1496352).

Almost surely, 2^16443198 is an apocalyptic number.

16443198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16443198 is an abundant number, since it is smaller than the sum of its proper divisors (19469250).

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

16443198 is a wasteful number, since it uses less digits than its factorization.

16443198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328 (or 7325 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 16443198 is about 4055.0213316332. The cubic root of 16443198 is about 254.2896957132.

It can be divided in two parts, 16443 and 198, that added together give a square (16641 = 129²).

The spelling of 16443198 in words is "sixteen million, four hundred forty-three thousand, one hundred ninety-eight".