2041780 has 24 divisors (see below), whose sum is σ = 4618152. Its totient is φ = 753792.

The previous prime is 2041757. The next prime is 2041783. The reversal of 2041780 is 871402.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 1965604 = 276^2 + 1402^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667 + ... + 4186.

It is an arithmetic number, because the mean of its divisors is an integer number (192423).

2^2041780 is an apocalyptic number.

2041780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2041780 is an abundant number, since it is smaller than the sum of its proper divisors (2576372).

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

2041780 is a wasteful number, since it uses less digits than its factorization.

2041780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875 (or 7873 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2041780 is about 1428.9086744785. The cubic root of 2041780 is about 126.8633908344.

The spelling of 2041780 in words is "two million, forty-one thousand, seven hundred eighty".