198428284 has 24 divisors (see below), whose sum is σ = 368232480. Its totient is φ = 93236736.

The previous prime is 198428239. The next prime is 198428323. The reversal of 198428284 is 482824891.

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 in 7 ways as a sum of consecutive naturals, for example, 53209 + ... + 56815.

It is an arithmetic number, because the mean of its divisors is an integer number (15343020).

Almost surely, 2^198428284 is an apocalyptic number.

It is an amenable number.

198428284 is a deficient number, since it is larger than the sum of its proper divisors (169804196).

198428284 is a wasteful number, since it uses less digits than its factorization.

198428284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437 (or 4435 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 198428284 is about 14086.4574680790. The cubic root of 198428284 is about 583.2676086676.

The spelling of 198428284 in words is "one hundred ninety-eight million, four hundred twenty-eight thousand, two hundred eighty-four".