198057266 has 16 divisors (see below), whose sum is σ = 328199040. Its totient is φ = 88885680.

The previous prime is 198057257. The next prime is 198057283. The reversal of 198057266 is 662750891.

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, 55241 + ... + 58716.

It is an arithmetic number, because the mean of its divisors is an integer number (20512440).

Almost surely, 2^198057266 is an apocalyptic number.

198057266 is a deficient number, since it is larger than the sum of its proper divisors (130141774).

198057266 is a wasteful number, since it uses less digits than its factorization.

198057266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114049.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 198057266 is about 14073.2819910638. The cubic root of 198057266 is about 582.9038537414.

The spelling of 198057266 in words is "one hundred ninety-eight million, fifty-seven thousand, two hundred sixty-six".