2040517 has 4 divisors (see below), whose sum is σ = 2043756. Its totient is φ = 2037280.

The previous prime is 2040497. The next prime is 2040539. The reversal of 2040517 is 7150402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 772641 + 1267876 = 879^2 + 1126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040494 and 2040503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040557) 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 3 ways as a sum of consecutive naturals, for example, 334 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (510939).

2^2040517 is an apocalyptic number.

It is an amenable number.

2040517 is a deficient number, since it is larger than the sum of its proper divisors (3239).

2040517 is an equidigital number, since it uses as much as digits as its factorization.

2040517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2040517 is about 1428.4666604440. The cubic root of 2040517 is about 126.8372271419.

Adding to 2040517 its reverse (7150402), we get a palindrome (9190919).

The spelling of 2040517 in words is "two million, forty thousand, five hundred seventeen".