442135033 has 4 divisors (see below), whose sum is σ = 442323108. Its totient is φ = 441946960.

The previous prime is 442135027. The next prime is 442135037. The reversal of 442135033 is 330531244.

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

It can be written as a sum of positive squares in 2 ways, for example, as 168298729 + 273836304 = 12973^2 + 16548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442135033 is a prime.

It is a super-2 number, since 2×442135033² = 390966774811822178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442134989 and 442135007.

It is not an unprimeable number, because it can be changed into a prime (442135037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90466 + ... + 95227.

It is an arithmetic number, because the mean of its divisors is an integer number (110580777).

Almost surely, 2^442135033 is an apocalyptic number.

It is an amenable number.

442135033 is a deficient number, since it is larger than the sum of its proper divisors (188075).

442135033 is a wasteful number, since it uses less digits than its factorization.

442135033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188074.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 442135033 is about 21027.0072287998. The cubic root of 442135033 is about 761.8187242016.

Adding to 442135033 its reverse (330531244), we get a palindrome (772666277).

The spelling of 442135033 in words is "four hundred forty-two million, one hundred thirty-five thousand, thirty-three".