2871816240 has 40 divisors (see below), whose sum is σ = 8902631088. Its totient is φ = 765817600.

The previous prime is 2871816221. The next prime is 2871816253. The reversal of 2871816240 is 426181782.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5982711 + ... + 5983190.

Almost surely, 2^2871816240 is an apocalyptic number.

2871816240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871816240 is an abundant number, since it is smaller than the sum of its proper divisors (6030814848).

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

2871816240 is a wasteful number, since it uses less digits than its factorization.

2871816240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11965917 (or 11965911 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2871816240 is about 53589.3295348990. The cubic root of 2871816240 is about 1421.4084154805.

The spelling of 2871816240 in words is "two billion, eight hundred seventy-one million, eight hundred sixteen thousand, two hundred forty".