998128848 has 80 divisors (see below), whose sum is σ = 2676900096. Its totient is φ = 320248320.

The previous prime is 998128847. The next prime is 998128889. The reversal of 998128848 is 848821899.

It is a super-2 number, since 2×998128848² = 1992522394419614208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998128847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133990 + ... + 141242.

Almost surely, 2^998128848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998128848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338450048).

998128848 is an abundant number, since it is smaller than the sum of its proper divisors (1678771248).

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

998128848 is a wasteful number, since it uses less digits than its factorization.

998128848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372 (or 7366 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 57.

The square root of 998128848 is about 31593.1772381317. The cubic root of 998128848 is about 999.3758932384.

The spelling of 998128848 in words is "nine hundred ninety-eight million, one hundred twenty-eight thousand, eight hundred forty-eight".