2031880 has 32 divisors (see below), whose sum is σ = 4636800. Its totient is φ = 801216.

The previous prime is 2031863. The next prime is 2031893. The reversal of 2031880 is 881302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2839 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (144900).

2^2031880 is an apocalyptic number.

2031880 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 2031880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2318400).

2031880 is an abundant number, since it is smaller than the sum of its proper divisors (2604920).

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

2031880 is a wasteful number, since it uses less digits than its factorization.

2031880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2031880 is about 1425.4402828600. The cubic root of 2031880 is about 126.6580172610.

The spelling of 2031880 in words is "two million, thirty-one thousand, eight hundred eighty".