2889239920 has 160 divisors (see below), whose sum is σ = 7949491200. Its totient is φ = 975985920.

The previous prime is 2889239911. The next prime is 2889239923. The reversal of 2889239920 is 299329882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889239923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1947499 + ... + 1948981.

It is an arithmetic number, because the mean of its divisors is an integer number (49684320).

Almost surely, 2^2889239920 is an apocalyptic number.

2889239920 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 2889239920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3974745600).

2889239920 is an abundant number, since it is smaller than the sum of its proper divisors (5060251280).

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

2889239920 is a wasteful number, since it uses less digits than its factorization.

2889239920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1568 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 2889239920 is about 53751.6503932670. The cubic root of 2889239920 is about 1424.2772442344.

The spelling of 2889239920 in words is "two billion, eight hundred eighty-nine million, two hundred thirty-nine thousand, nine hundred twenty".