198555226 has 8 divisors (see below), whose sum is σ = 298426464. Its totient is φ = 99079740.

The previous prime is 198555191. The next prime is 198555233. The reversal of 198555226 is 622555891.

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

It is a super-2 number, since 2×198555226² = 78848355543822152, which contains 22 as substring.

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, 97680 + ... + 99691.

It is an arithmetic number, because the mean of its divisors is an integer number (37303308).

Almost surely, 2^198555226 is an apocalyptic number.

198555226 is a deficient number, since it is larger than the sum of its proper divisors (99871238).

198555226 is a wasteful number, since it uses less digits than its factorization.

198555226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197876.

The product of its digits is 216000, while the sum is 43.

The square root of 198555226 is about 14090.9625647079. The cubic root of 198555226 is about 583.3919615268.

The spelling of 198555226 in words is "one hundred ninety-eight million, five hundred fifty-five thousand, two hundred twenty-six".