998343792 has 200 divisors, whose sum is σ = 3030207840. Its totient is φ = 316915200.

The previous prime is 998343791. The next prime is 998343817. The reversal of 998343792 is 297343899.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998343791) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3795853 + ... + 3796115.

Almost surely, 2^998343792 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 998343792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515103920).

998343792 is an abundant number, since it is smaller than the sum of its proper divisors (2031864048).

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

998343792 is a wasteful number, since it uses less digits than its factorization.

998343792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 398 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 998343792 is about 31596.5788021425. The cubic root of 998343792 is about 999.4476256054.

The spelling of 998343792 in words is "nine hundred ninety-eight million, three hundred forty-three thousand, seven hundred ninety-two".