998345600 has 144 divisors (see below), whose sum is σ = 2869325280. Its totient is φ = 342236160.

The previous prime is 998345599. The next prime is 998345611. The reversal of 998345600 is 6543899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 153617 + ... + 159983.

It is an arithmetic number, because the mean of its divisors is an integer number (19925870).

Almost surely, 2^998345600 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 998345600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434662640).

998345600 is an abundant number, since it is smaller than the sum of its proper divisors (1870979680).

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

998345600 is a wasteful number, since it uses less digits than its factorization.

998345600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405 (or 6381 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 998345600 is about 31596.6074128220. The cubic root of 998345600 is about 999.4482289380.

The spelling of 998345600 in words is "nine hundred ninety-eight million, three hundred forty-five thousand, six hundred".