2040660403 has 2 divisors, whose sum is σ = 2040660404. Its totient is φ = 2040660402.

The previous prime is 2040660383. The next prime is 2040660421. The reversal of 2040660403 is 3040660402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2040660403 - 2⁹ = 2040659891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2040660443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020330201 + 1020330202.

It is an arithmetic number, because the mean of its divisors is an integer number (1020330202).

Almost surely, 2^2040660403 is an apocalyptic number.

2040660403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040660403 is an equidigital number, since it uses as much as digits as its factorization.

2040660403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2040660403 is about 45173.6693550568. The cubic root of 2040660403 is about 1268.4019835181.

Subtracting 2040660403 from its reverse (3040660402), we obtain a palindrome (999999999).

The spelling of 2040660403 in words is "two billion, forty million, six hundred sixty thousand, four hundred three".