989280000 has 360 divisors, whose sum is σ = 3671637200. Its totient is φ = 262656000.

The previous prime is 989279999. The next prime is 989280001. The reversal of 989280000 is 82989.

It is an interprime number because it is at equal distance from previous prime (989279999) and next prime (989280001).

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989280001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4319886 + ... + 4320114.

Almost surely, 2^989280000 is an apocalyptic number.

989280000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1835818600).

989280000 is an abundant number, since it is smaller than the sum of its proper divisors (2682357200).

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

989280000 is an equidigital number, since it uses as much as digits as its factorization.

989280000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 989280000 is about 31452.8218129948. The cubic root of 989280000 is about 996.4138213630.

The spelling of 989280000 in words is "nine hundred eighty-nine million, two hundred eighty thousand".