2871889340 has 24 divisors (see below), whose sum is σ = 6120984912. Its totient is φ = 1131609600.

The previous prime is 2871889313. The next prime is 2871889351. The reversal of 2871889340 is 439881782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070261 + ... + 1072940.

It is an arithmetic number, because the mean of its divisors is an integer number (255041038).

Almost surely, 2^2871889340 is an apocalyptic number.

2871889340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871889340 is an abundant number, since it is smaller than the sum of its proper divisors (3249095572).

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

2871889340 is a wasteful number, since it uses less digits than its factorization.

2871889340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143277 (or 2143275 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 2871889340 is about 53590.0115693214. The cubic root of 2871889340 is about 1421.4204756850.

The spelling of 2871889340 in words is "two billion, eight hundred seventy-one million, eight hundred eighty-nine thousand, three hundred forty".