998418812 has 12 divisors (see below), whose sum is σ = 1747571280. Its totient is φ = 499112736.

The previous prime is 998418803. The next prime is 998418899. The reversal of 998418812 is 218814899.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288 + ... + 44744.

It is an arithmetic number, because the mean of its divisors is an integer number (145630940).

Almost surely, 2^998418812 is an apocalyptic number.

It is an amenable number.

998418812 is a deficient number, since it is larger than the sum of its proper divisors (749152468).

998418812 is a wasteful number, since it uses less digits than its factorization.

998418812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48340 (or 48338 counting only the distinct ones).

The product of its digits is 331776, while the sum is 50.

The square root of 998418812 is about 31597.7659336859. The cubic root of 998418812 is about 999.4726592940.

The spelling of 998418812 in words is "nine hundred ninety-eight million, four hundred eighteen thousand, eight hundred twelve".