2989925280 has 144 divisors (see below), whose sum is σ = 10217287080. Its totient is φ = 796207104.

The previous prime is 2989925251. The next prime is 2989925311. The reversal of 2989925280 is 825299892.

2989925280 is a `hidden beast` number, since 29 + 8 + 9 + 92 + 528 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2512415376 + 477509904 = 50124^2 + 21852^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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, 2057034 + ... + 2058486.

Almost surely, 2^2989925280 is an apocalyptic number.

2989925280 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 2989925280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5108643540).

2989925280 is an abundant number, since it is smaller than the sum of its proper divisors (7227361800).

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

2989925280 is a wasteful number, since it uses less digits than its factorization.

2989925280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 2989925280 is about 54680.2092168638. The cubic root of 2989925280 is about 1440.6332862660.

The spelling of 2989925280 in words is "two billion, nine hundred eighty-nine million, nine hundred twenty-five thousand, two hundred eighty".