4040545841 has 2 divisors, whose sum is σ = 4040545842. Its totient is φ = 4040545840.

The previous prime is 4040545829. The next prime is 4040545897. The reversal of 4040545841 is 1485450404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3699072400 + 341473441 = 60820^2 + 18479^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040545841 - 2¹⁴ = 4040529457 is a prime.

It is not a weakly prime, because it can be changed into another prime (4040545141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020272920 + 2020272921.

It is an arithmetic number, because the mean of its divisors is an integer number (2020272921).

Almost surely, 2^4040545841 is an apocalyptic number.

It is an amenable number.

4040545841 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040545841 is an equidigital number, since it uses as much as digits as its factorization.

4040545841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51200, while the sum is 35.

The square root of 4040545841 is about 63565.2880194843. The cubic root of 4040545841 is about 1592.7465734472.

The spelling of 4040545841 in words is "four billion, forty million, five hundred forty-five thousand, eight hundred forty-one".