998368888 has 64 divisors (see below), whose sum is σ = 2115072000. Its totient is φ = 437692800.

The previous prime is 998368879. The next prime is 998368909. The reversal of 998368888 is 888863899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388193 + ... + 1388911.

It is an arithmetic number, because the mean of its divisors is an integer number (33048000).

Almost surely, 2^998368888 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 998368888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057536000).

998368888 is an abundant number, since it is smaller than the sum of its proper divisors (1116703112).

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

998368888 is a wasteful number, since it uses less digits than its factorization.

With its successor (998368889) it forms an eRAP, since the sums of their prime factors are consecutive (1276 and 1277).

998368888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1272 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 67.

The square root of 998368888 is about 31596.9759312501. The cubic root of 998368888 is about 999.4560001178.

The spelling of 998368888 in words is "nine hundred ninety-eight million, three hundred sixty-eight thousand, eight hundred eighty-eight".