4042775449 has 2 divisors, whose sum is σ = 4042775450. Its totient is φ = 4042775448.

The previous prime is 4042775383. The next prime is 4042775461. The reversal of 4042775449 is 9445772404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2720144025 + 1322631424 = 52155^2 + 36368^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042775449 - 2⁹ = 4042774937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4042775399 and 4042775408.

It is not a weakly prime, because it can be changed into another prime (4042745449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021387724 + 2021387725.

It is an arithmetic number, because the mean of its divisors is an integer number (2021387725).

Almost surely, 2^4042775449 is an apocalyptic number.

It is an amenable number.

4042775449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042775449 is an equidigital number, since it uses as much as digits as its factorization.

4042775449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The square root of 4042775449 is about 63582.8235374932. The cubic root of 4042775449 is about 1593.0394833367.

The spelling of 4042775449 in words is "four billion, forty-two million, seven hundred seventy-five thousand, four hundred forty-nine".