228289198 has 4 divisors (see below), whose sum is σ = 342433800. Its totient is φ = 114144598.

The previous prime is 228289163. The next prime is 228289207. The reversal of 228289198 is 891982822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 57072298 + ... + 57072301.

It is an arithmetic number, because the mean of its divisors is an integer number (85608450).

Almost surely, 2^228289198 is an apocalyptic number.

228289198 is a deficient number, since it is larger than the sum of its proper divisors (114144602).

228289198 is a wasteful number, since it uses less digits than its factorization.

228289198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114144601.

The product of its digits is 331776, while the sum is 49.

The square root of 228289198 is about 15109.2421385058. The cubic root of 228289198 is about 611.1696611695.

The spelling of 228289198 in words is "two hundred twenty-eight million, two hundred eighty-nine thousand, one hundred ninety-eight".