2989659520 has 128 divisors (see below), whose sum is σ = 7336656000. Its totient is φ = 1164607488.

The previous prime is 2989659511. The next prime is 2989659523. The reversal of 2989659520 is 259569892.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989659523) 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, 4157721 + ... + 4158439.

It is an arithmetic number, because the mean of its divisors is an integer number (57317625).

Almost surely, 2^2989659520 is an apocalyptic number.

2989659520 is a gapful number since it is divisible by the number (20) 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 2989659520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3668328000).

2989659520 is an abundant number, since it is smaller than the sum of its proper divisors (4346996480).

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

2989659520 is an equidigital number, since it uses as much as digits as its factorization.

2989659520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 2989659520 is about 54677.7790331685. The cubic root of 2989659520 is about 1440.5906013591.

The spelling of 2989659520 in words is "two billion, nine hundred eighty-nine million, six hundred fifty-nine thousand, five hundred twenty".