198670226 has 8 divisors (see below), whose sum is σ = 298211004. Its totient is φ = 99266560.

The previous prime is 198670223. The next prime is 198670243. The reversal of 198670226 is 622076891.

It can be written as a sum of positive squares in 2 ways, for example, as 188101225 + 10569001 = 13715^2 + 3251^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198670223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30575 + ... + 36498.

Almost surely, 2^198670226 is an apocalyptic number.

198670226 is a deficient number, since it is larger than the sum of its proper divisors (99540778).

198670226 is a wasteful number, since it uses less digits than its factorization.

198670226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68556.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 198670226 is about 14095.0426036958. The cubic root of 198670226 is about 583.5045702094.

The spelling of 198670226 in words is "one hundred ninety-eight million, six hundred seventy thousand, two hundred twenty-six".