998832380 has 96 divisors (see below), whose sum is σ = 2641841664. Its totient is φ = 308738304.

The previous prime is 998832323. The next prime is 998832403. The reversal of 998832380 is 83238899.

It is a happy number.

It is a super-2 number, since 2×998832380² = 1995332246672928800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71879 + ... + 84641.

It is an arithmetic number, because the mean of its divisors is an integer number (27519184).

Almost surely, 2^998832380 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 998832380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320920832).

998832380 is an abundant number, since it is smaller than the sum of its proper divisors (1643009284).

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

998832380 is a wasteful number, since it uses less digits than its factorization.

998832380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835 (or 12833 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 998832380 is about 31604.3095162669. The cubic root of 998832380 is about 999.6106417532.

The spelling of 998832380 in words is "nine hundred ninety-eight million, eight hundred thirty-two thousand, three hundred eighty".