2831880 has 32 divisors (see below), whose sum is σ = 8496000. Its totient is φ = 755136.

The previous prime is 2831863. The next prime is 2831903. The reversal of 2831880 is 881382.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11680 + ... + 11919.

It is an arithmetic number, because the mean of its divisors is an integer number (265500).

2^2831880 is an apocalyptic number.

2831880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2831880 is an abundant number, since it is smaller than the sum of its proper divisors (5664120).

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

2831880 is a wasteful number, since it uses less digits than its factorization.

2831880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23613 (or 23609 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 2831880 is about 1682.8190633577. The cubic root of 2831880 is about 141.4788807564.

The spelling of 2831880 in words is "two million, eight hundred thirty-one thousand, eight hundred eighty".