998250 has 64 divisors (see below), whose sum is σ = 2740608. Its totient is φ = 242000.

The previous prime is 998243. The next prime is 998273. The reversal of 998250 is 52899.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998250.

It is an unprimeable number.

998250 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90745 + ... + 90755.

It is an arithmetic number, because the mean of its divisors is an integer number (42822).

2⁹⁹⁸²⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370304).

998250 is an abundant number, since it is smaller than the sum of its proper divisors (1742358).

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

998250 is a wasteful number, since it uses less digits than its factorization.

998250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 998250 is about 999.1246168522. The cubic root of 998250 is about 99.9416326058.

The spelling of 998250 in words is "nine hundred ninety-eight thousand, two hundred fifty".