998180568 has 432 divisors, whose sum is σ = 3685289400. Its totient is φ = 241274880.

The previous prime is 998180531. The next prime is 998180581. The reversal of 998180568 is 865081899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 11215468 + ... + 11215556.

Almost surely, 2^998180568 is an apocalyptic number.

998180568 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998180568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842644700).

998180568 is an abundant number, since it is smaller than the sum of its proper divisors (2687108832).

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

998180568 is a wasteful number, since it uses less digits than its factorization.

998180568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The square root of 998180568 is about 31593.9957586881. The cubic root of 998180568 is about 999.3931544797.

The spelling of 998180568 in words is "nine hundred ninety-eight million, one hundred eighty thousand, five hundred sixty-eight".