442120533 has 8 divisors (see below), whose sum is σ = 589668288. Its totient is φ = 294659904.

The previous prime is 442120501. The next prime is 442120579. The reversal of 442120533 is 335021244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442120533 - 2⁵ = 442120501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442120433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8841 + ... + 31022.

It is an arithmetic number, because the mean of its divisors is an integer number (73708536).

Almost surely, 2^442120533 is an apocalyptic number.

It is an amenable number.

442120533 is a deficient number, since it is larger than the sum of its proper divisors (147547755).

442120533 is a wasteful number, since it uses less digits than its factorization.

442120533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43563.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 442120533 is about 21026.6624313037. The cubic root of 442120533 is about 761.8103960579.

Adding to 442120533 its reverse (335021244), we get a palindrome (777141777).

The spelling of 442120533 in words is "four hundred forty-two million, one hundred twenty thousand, five hundred thirty-three".