2871040 has 36 divisors (see below), whose sum is σ = 6880104. Its totient is φ = 1147904.

The previous prime is 2871031. The next prime is 2871049. The reversal of 2871040 is 401782.

It is an interprime number because it is at equal distance from previous prime (2871031) and next prime (2871049).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (191114).

2^2871040 is an apocalyptic number.

2871040 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 2871040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3440052).

2871040 is an abundant number, since it is smaller than the sum of its proper divisors (4009064).

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

2871040 is an equidigital number, since it uses as much as digits as its factorization.

2871040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2871040 is about 1694.4143531026. The cubic root of 2871040 is about 142.1280337010.

The spelling of 2871040 in words is "two million, eight hundred seventy-one thousand, forty".