2671840 has 24 divisors (see below), whose sum is σ = 6312600. Its totient is φ = 1068672.

The previous prime is 2671829. The next prime is 2671843. The reversal of 2671840 is 481762.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2671799 and 2671808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2671843) 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, 8190 + ... + 8509.

It is an arithmetic number, because the mean of its divisors is an integer number (263025).

2^2671840 is an apocalyptic number.

2671840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2671840 is an abundant number, since it is smaller than the sum of its proper divisors (3640760).

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

2671840 is a wasteful number, since it uses less digits than its factorization.

2671840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16714 (or 16706 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2671840 is about 1634.5763977251. The cubic root of 2671840 is about 138.7618716677.

The spelling of 2671840 in words is "two million, six hundred seventy-one thousand, eight hundred forty".