2997989000 has 128 divisors (see below), whose sum is σ = 7221726720. Its totient is φ = 1164352000.

The previous prime is 2997988997. The next prime is 2997989017. The reversal of 2997989000 is 9897992.

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10668860 + ... + 10669140.

It is an arithmetic number, because the mean of its divisors is an integer number (56419740).

Almost surely, 2^2997989000 is an apocalyptic number.

2997989000 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 2997989000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3610863360).

2997989000 is an abundant number, since it is smaller than the sum of its proper divisors (4223737720).

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

2997989000 is a wasteful number, since it uses less digits than its factorization.

2997989000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 2997989000 is about 54753.8948386323. The cubic root of 2997989000 is about 1441.9272356188.

The spelling of 2997989000 in words is "two billion, nine hundred ninety-seven million, nine hundred eighty-nine thousand".