442030135 has 4 divisors (see below), whose sum is σ = 530436168. Its totient is φ = 353624104.

The previous prime is 442030103. The next prime is 442030139. The reversal of 442030135 is 531030244.

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 442030135 - 2⁵ = 442030103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442030139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44203009 + ... + 44203018.

It is an arithmetic number, because the mean of its divisors is an integer number (132609042).

Almost surely, 2^442030135 is an apocalyptic number.

442030135 is a deficient number, since it is larger than the sum of its proper divisors (88406033).

442030135 is an equidigital number, since it uses as much as digits as its factorization.

442030135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88406032.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 442030135 is about 21024.5127173022. The cubic root of 442030135 is about 761.7584714317.

Adding to 442030135 its reverse (531030244), we get a palindrome (973060379).

The spelling of 442030135 in words is "four hundred forty-two million, thirty thousand, one hundred thirty-five".