989942304 has 96 divisors (see below), whose sum is σ = 2813819904. Its totient is φ = 302929920.

The previous prime is 989942299. The next prime is 989942311. The reversal of 989942304 is 403249989.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236292 + ... + 240444.

It is an arithmetic number, because the mean of its divisors is an integer number (29310624).

Almost surely, 2^989942304 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 989942304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406909952).

989942304 is an abundant number, since it is smaller than the sum of its proper divisors (1823877600).

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

989942304 is a wasteful number, since it uses less digits than its factorization.

989942304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370 (or 4362 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 989942304 is about 31463.3485821201. The cubic root of 989942304 is about 996.6361317451.

The spelling of 989942304 in words is "nine hundred eighty-nine million, nine hundred forty-two thousand, three hundred four".