4442120549 has 2 divisors, whose sum is σ = 4442120550. Its totient is φ = 4442120548.

The previous prime is 4442120533. The next prime is 4442120593. The reversal of 4442120549 is 9450212444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2257960324 + 2184160225 = 47518^2 + 46735^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442120549 - 2⁴ = 4442120533 is a prime.

It is a super-2 number, since 2×4442120549² = 39464869943696122802, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4442110549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221060274 + 2221060275.

It is an arithmetic number, because the mean of its divisors is an integer number (2221060275).

Almost surely, 2^4442120549 is an apocalyptic number.

It is an amenable number.

4442120549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442120549 is an equidigital number, since it uses as much as digits as its factorization.

4442120549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 4442120549 is about 66649.2351719058. The cubic root of 4442120549 is about 1643.8547719769.

The spelling of 4442120549 in words is "four billion, four hundred forty-two million, one hundred twenty thousand, five hundred forty-nine".