442505335 has 4 divisors (see below), whose sum is σ = 531006408. Its totient is φ = 354004264.

The previous prime is 442505317. The next prime is 442505351. The reversal of 442505335 is 533505244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442505335 - 2⁷ = 442505207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442505297 and 442505306.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 44250529 + ... + 44250538.

It is an arithmetic number, because the mean of its divisors is an integer number (132751602).

Almost surely, 2^442505335 is an apocalyptic number.

442505335 is a deficient number, since it is larger than the sum of its proper divisors (88501073).

442505335 is an equidigital number, since it uses as much as digits as its factorization.

442505335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88501072.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 442505335 is about 21035.8107759126. The cubic root of 442505335 is about 762.0313472361.

Subtracting 442505335 from its reverse (533505244), we obtain a palindrome (90999909).

The spelling of 442505335 in words is "four hundred forty-two million, five hundred five thousand, three hundred thirty-five".