198872070 has 32 divisors (see below), whose sum is σ = 477798912. Its totient is φ = 52976352.

The previous prime is 198872041. The next prime is 198872071. The reversal of 198872070 is 70278891.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198872071) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30739 + ... + 36641.

It is an arithmetic number, because the mean of its divisors is an integer number (14931216).

Almost surely, 2^198872070 is an apocalyptic number.

198872070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198872070 is an abundant number, since it is smaller than the sum of its proper divisors (278926842).

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

198872070 is a wasteful number, since it uses less digits than its factorization.

198872070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 198872070 is about 14102.2008920594. The cubic root of 198872070 is about 583.7021120273.

The spelling of 198872070 in words is "one hundred ninety-eight million, eight hundred seventy-two thousand, seventy".