2045880 has 48 divisors (see below), whose sum is σ = 6650280. Its totient is φ = 545472.

The previous prime is 2045851. The next prime is 2045881. The reversal of 2045880 is 885402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2482 + ... + 3201.

2^2045880 is an apocalyptic number.

2045880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045880 is an abundant number, since it is smaller than the sum of its proper divisors (4604400).

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

2045880 is a wasteful number, since it uses less digits than its factorization.

2045880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700 (or 5693 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 2045880 is about 1430.3426162986. The cubic root of 2045880 is about 126.9482501458.

It can be divided in two parts, 204 and 5880, that added together give a square (6084 = 78²).

The spelling of 2045880 in words is "two million, forty-five thousand, eight hundred eighty".