1980041 has 12 divisors (see below), whose sum is σ = 2439828. Its totient is φ = 1596672.

The previous prime is 1980031. The next prime is 1980053. The reversal of 1980041 is 1400891.

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 802816 = 1085^2 + 896^2 .

It is not a de Polignac number, because 1980041 - 2¹⁴ = 1963657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 1979989 and 1980016.

It is not an unprimeable number, because it can be changed into a prime (1980031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356 + ... + 2021.

It is an arithmetic number, because the mean of its divisors is an integer number (203319).

2^1980041 is an apocalyptic number.

It is an amenable number.

1980041 is a deficient number, since it is larger than the sum of its proper divisors (459787).

1980041 is a wasteful number, since it uses less digits than its factorization.

1980041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1980041 is about 1407.1392965872. The cubic root of 1980041 is about 125.5715902924.

The spelling of 1980041 in words is "one million, nine hundred eighty thousand, forty-one".