998623200 has 288 divisors, whose sum is σ = 3449779200. Its totient is φ = 250398720.

The previous prime is 998623187. The next prime is 998623211. The reversal of 998623200 is 2326899.

It is a Cunningham number, because it is equal to 31601²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4360686 + ... + 4360914.

It is an arithmetic number, because the mean of its divisors is an integer number (11978400).

Almost surely, 2^998623200 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 998623200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724889600).

998623200 is an abundant number, since it is smaller than the sum of its proper divisors (2451156000).

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

998623200 is a wasteful number, since it uses less digits than its factorization.

998623200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 998623200 is about 31600.9999841777. Note that the first 4 decimals coincide. The cubic root of 998623200 is about 999.5408558856.

The spelling of 998623200 in words is "nine hundred ninety-eight million, six hundred twenty-three thousand, two hundred".