998442196 has 18 divisors (see below), whose sum is σ = 1780883342. Its totient is φ = 489796320.

The previous prime is 998442169. The next prime is 998442199. The reversal of 998442196 is 691244899.

It can be written as a sum of positive squares in 3 ways, for example, as 494439696 + 504002500 = 22236^2 + 22450^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998442199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33195 + ... + 55666.

Almost surely, 2^998442196 is an apocalyptic number.

It is an amenable number.

998442196 is a deficient number, since it is larger than the sum of its proper divisors (782441146).

998442196 is a wasteful number, since it uses less digits than its factorization.

998442196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88971 (or 88916 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 52.

The square root of 998442196 is about 31598.1359576795. The cubic root of 998442196 is about 999.4804621271.

The spelling of 998442196 in words is "nine hundred ninety-eight million, four hundred forty-two thousand, one hundred ninety-six".