442130053 has 4 divisors (see below), whose sum is σ = 445611520. Its totient is φ = 438648588.

The previous prime is 442130023. The next prime is 442130069. The reversal of 442130053 is 350031244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442130053 - 2⁵ = 442130021 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 (442130023) 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, 1740543 + ... + 1740796.

It is an arithmetic number, because the mean of its divisors is an integer number (111402880).

Almost surely, 2^442130053 is an apocalyptic number.

It is an amenable number.

442130053 is a deficient number, since it is larger than the sum of its proper divisors (3481467).

442130053 is a wasteful number, since it uses less digits than its factorization.

442130053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481466.

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

The square root of 442130053 is about 21026.8888093317. Note that the first 4 decimals coincide. The cubic root of 442130053 is about 761.8158639355.

Adding to 442130053 its reverse (350031244), we get a palindrome (792161297).

The spelling of 442130053 in words is "four hundred forty-two million, one hundred thirty thousand, fifty-three".