998489016 has 96 divisors (see below), whose sum is σ = 3272387040. Its totient is φ = 268498944.

The previous prime is 998488927. The next prime is 998489077. The reversal of 998489016 is 610984899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49701 + ... + 66836.

It is an arithmetic number, because the mean of its divisors is an integer number (34087365).

Almost surely, 2^998489016 is an apocalyptic number.

It is an amenable number.

998489016 is an abundant number, since it is smaller than the sum of its proper divisors (2273898024).

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

998489016 is a wasteful number, since it uses less digits than its factorization.

998489016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116573 (or 116566 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 998489016 is about 31598.8768154819. The cubic root of 998489016 is about 999.4960847788.

The spelling of 998489016 in words is "nine hundred ninety-eight million, four hundred eighty-nine thousand, sixteen".