998600020 has 24 divisors (see below), whose sum is σ = 2287702368. Its totient is φ = 363127200.

The previous prime is 998600017. The next prime is 998600063. The reversal of 998600020 is 20006899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2269326 + ... + 2269765.

It is an arithmetic number, because the mean of its divisors is an integer number (95320932).

Almost surely, 2^998600020 is an apocalyptic number.

It is an amenable number.

998600020 is an abundant number, since it is smaller than the sum of its proper divisors (1289102348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998600020 is a wasteful number, since it uses less digits than its factorization.

998600020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539111 (or 4539109 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 998600020 is about 31600.6332215036. The cubic root of 998600020 is about 999.5331220589.

The spelling of 998600020 in words is "nine hundred ninety-eight million, six hundred thousand, twenty".