2540441 has 2 divisors, whose sum is σ = 2540442. Its totient is φ = 2540440.

The previous prime is 2540431. The next prime is 2540443. The reversal of 2540441 is 1440452.

2540441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 364816 = 1475^2 + 604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2540441 is a prime.

It is a Sophie Germain prime.

Together with 2540443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2540443) 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, 1270220 + 1270221.

It is an arithmetic number, because the mean of its divisors is an integer number (1270221).

2^2540441 is an apocalyptic number.

It is an amenable number.

2540441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540441 is an equidigital number, since it uses as much as digits as its factorization.

2540441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2540441 is about 1593.8760930512. The cubic root of 2540441 is about 136.4487949020.

Adding to 2540441 its reverse (1440452), we get a palindrome (3980893).

The spelling of 2540441 in words is "two million, five hundred forty thousand, four hundred forty-one".