198286238 has 8 divisors (see below), whose sum is σ = 297980760. Its totient is φ = 98959320.

The previous prime is 198286237. The next prime is 198286241. The reversal of 198286238 is 832682891.

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

It is a junction number, because it is equal to n+sod(n) for n = 198286192 and 198286201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198286237) by changing a digit.

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, 90548 + ... + 92711.

It is an arithmetic number, because the mean of its divisors is an integer number (37247595).

Almost surely, 2^198286238 is an apocalyptic number.

198286238 is a deficient number, since it is larger than the sum of its proper divisors (99694522).

198286238 is a wasteful number, since it uses less digits than its factorization.

198286238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183802.

The product of its digits is 331776, while the sum is 47.

The square root of 198286238 is about 14081.4146306399. The cubic root of 198286238 is about 583.1283969808.

The spelling of 198286238 in words is "one hundred ninety-eight million, two hundred eighty-six thousand, two hundred thirty-eight".