989958288 has 40 divisors (see below), whose sum is σ = 2789883936. Its totient is φ = 299987200.

The previous prime is 989958287. The next prime is 989958313. The reversal of 989958288 is 882859989.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (989958283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936933 + ... + 937988.

Almost surely, 2^989958288 is an apocalyptic number.

It is an amenable number.

989958288 is an abundant number, since it is smaller than the sum of its proper divisors (1799925648).

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

989958288 is a wasteful number, since it uses less digits than its factorization.

989958288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874943 (or 1874937 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 66.

The square root of 989958288 is about 31463.6025909304. The cubic root of 989958288 is about 996.6414957433.

The spelling of 989958288 in words is "nine hundred eighty-nine million, nine hundred fifty-eight thousand, two hundred eighty-eight".