2001880 has 16 divisors (see below), whose sum is σ = 4504320. Its totient is φ = 800736.

The previous prime is 2001847. The next prime is 2001911. The reversal of 2001880 is 881002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24984 + ... + 25063.

It is an arithmetic number, because the mean of its divisors is an integer number (281520).

2^2001880 is an apocalyptic number.

2001880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001880 is an abundant number, since it is smaller than the sum of its proper divisors (2502440).

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

2001880 is a wasteful number, since it uses less digits than its factorization.

2001880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50058 (or 50054 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 2001880 is about 1414.8780866209. The cubic root of 2001880 is about 126.0315701525.

Adding to 2001880 its reverse (881002), we get a palindrome (2882882).

It can be divided in two parts, 200 and 1880, that added together give a triangular number (2080 = T₆₄).

The spelling of 2001880 in words is "two million, one thousand, eight hundred eighty".