198044959 has 8 divisors (see below), whose sum is σ = 226880640. Its totient is φ = 169345176.

The previous prime is 198044953. The next prime is 198044969. The reversal of 198044959 is 959440891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198044959 - 2¹³ = 198036767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198044953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30829 + ... + 36694.

It is an arithmetic number, because the mean of its divisors is an integer number (28360080).

Almost surely, 2^198044959 is an apocalyptic number.

198044959 is a deficient number, since it is larger than the sum of its proper divisors (28835681).

198044959 is an equidigital number, since it uses as much as digits as its factorization.

198044959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67949.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 198044959 is about 14072.8447372946. The cubic root of 198044959 is about 582.8917798827.

The spelling of 198044959 in words is "one hundred ninety-eight million, forty-four thousand, nine hundred fifty-nine".