989202560 has 128 divisors (see below), whose sum is σ = 2478159360. Its totient is φ = 377118720.

The previous prime is 989202553. The next prime is 989202563. The reversal of 989202560 is 65202989.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (989202563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447979 + ... + 1448661.

It is an arithmetic number, because the mean of its divisors is an integer number (19360620).

Almost surely, 2^989202560 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 989202560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239079680).

989202560 is an abundant number, since it is smaller than the sum of its proper divisors (1488956800).

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

989202560 is a wasteful number, since it uses less digits than its factorization.

989202560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 989202560 is about 31451.5907387846. The cubic root of 989202560 is about 996.3878212081.

The spelling of 989202560 in words is "nine hundred eighty-nine million, two hundred two thousand, five hundred sixty".