198066072 has 16 divisors (see below), whose sum is σ = 495165240. Its totient is φ = 66022016.

The previous prime is 198066067. The next prime is 198066083. The reversal of 198066072 is 270660891.

It is a self number, because there is not a number n which added to its sum of digits gives 198066072.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4126353 + ... + 4126400.

Almost surely, 2^198066072 is an apocalyptic number.

198066072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198066072 is an abundant number, since it is smaller than the sum of its proper divisors (297099168).

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

198066072 is a wasteful number, since it uses less digits than its factorization.

198066072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252762 (or 8252758 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 198066072 is about 14073.5948499308. The cubic root of 198066072 is about 582.9124926154.

It can be divided in two parts, 19806 and 6072, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 198066072 in words is "one hundred ninety-eight million, sixty-six thousand, seventy-two".