1040489 has 2 divisors, whose sum is σ = 1040490. Its totient is φ = 1040488.

The previous prime is 1040483. The next prime is 1040503. The reversal of 1040489 is 9840401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960400 + 80089 = 980^2 + 283^2 .

It is an emirp because it is prime and its reverse (9840401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040489 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1040483) 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 as a sum of consecutive naturals, namely, 520244 + 520245.

It is an arithmetic number, because the mean of its divisors is an integer number (520245).

2^1040489 is an apocalyptic number.

It is an amenable number.

1040489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040489 is an equidigital number, since it uses as much as digits as its factorization.

1040489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1040489 is about 1020.0436265180. The cubic root of 1040489 is about 101.3318172192.

The spelling of 1040489 in words is "one million, forty thousand, four hundred eighty-nine".