442474609 has 2 divisors, whose sum is σ = 442474610. Its totient is φ = 442474608.

The previous prime is 442474579. The next prime is 442474631. The reversal of 442474609 is 906474244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367565584 + 74909025 = 19172^2 + 8655^2 .

It is a cyclic number.

It is not a de Polignac number, because 442474609 - 2⁷ = 442474481 is a prime.

It is not a weakly prime, because it can be changed into another prime (442474699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221237304 + 221237305.

It is an arithmetic number, because the mean of its divisors is an integer number (221237305).

Almost surely, 2^442474609 is an apocalyptic number.

It is an amenable number.

442474609 is a deficient number, since it is larger than the sum of its proper divisors (1).

442474609 is an equidigital number, since it uses as much as digits as its factorization.

442474609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 442474609 is about 21035.0804372125. The cubic root of 442474609 is about 762.0137092437.

The spelling of 442474609 in words is "four hundred forty-two million, four hundred seventy-four thousand, six hundred nine".