998933250 has 128 divisors (see below), whose sum is σ = 2870899200. Its totient is φ = 226617600.

The previous prime is 998933239. The next prime is 998933251. The reversal of 998933250 is 52339899.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 998933250.

It is not an unprimeable number, because it can be changed into a prime (998933251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 781612 + ... + 782888.

It is an arithmetic number, because the mean of its divisors is an integer number (22428900).

Almost surely, 2^998933250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998933250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435449600).

998933250 is an abundant number, since it is smaller than the sum of its proper divisors (1871965950).

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

998933250 is a wasteful number, since it uses less digits than its factorization.

998933250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 998933250 is about 31605.9053026487. The cubic root of 998933250 is about 999.6442901522.

The spelling of 998933250 in words is "nine hundred ninety-eight million, nine hundred thirty-three thousand, two hundred fifty".