989218560 has 216 divisors, whose sum is σ = 3474268560. Its totient is φ = 239697920.

The previous prime is 989218519. The next prime is 989218579. The reversal of 989218560 is 65812989.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 463576 + ... + 465704.

Almost surely, 2^989218560 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 989218560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737134280).

989218560 is an abundant number, since it is smaller than the sum of its proper divisors (2485050000).

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

989218560 is a wasteful number, since it uses less digits than its factorization.

989218560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 989218560 is about 31451.8450969097. The cubic root of 989218560 is about 996.3931932521.

The spelling of 989218560 in words is "nine hundred eighty-nine million, two hundred eighteen thousand, five hundred sixty".