4442257609 has 2 divisors, whose sum is σ = 4442257610. Its totient is φ = 4442257608.

The previous prime is 4442257597. The next prime is 4442257657. The reversal of 4442257609 is 9067522444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3364580025 + 1077677584 = 58005^2 + 32828^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442257609 - 2¹⁵ = 4442224841 is a prime.

It is not a weakly prime, because it can be changed into another prime (4442257109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221128804 + 2221128805.

It is an arithmetic number, because the mean of its divisors is an integer number (2221128805).

Almost surely, 2^4442257609 is an apocalyptic number.

It is an amenable number.

4442257609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442257609 is an equidigital number, since it uses as much as digits as its factorization.

4442257609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 4442257609 is about 66650.2633828254. The cubic root of 4442257609 is about 1643.8716786483.

The spelling of 4442257609 in words is "four billion, four hundred forty-two million, two hundred fifty-seven thousand, six hundred nine".