442530122 has 4 divisors (see below), whose sum is σ = 663795186. Its totient is φ = 221265060.

The previous prime is 442530107. The next prime is 442530131. The reversal of 442530122 is 221035244.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 318229921 + 124300201 = 17839^2 + 11149^2 .

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 as a sum of consecutive naturals, namely, 110632529 + ... + 110632532.

Almost surely, 2^442530122 is an apocalyptic number.

442530122 is a deficient number, since it is larger than the sum of its proper divisors (221265064).

442530122 is a wasteful number, since it uses less digits than its factorization.

442530122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221265063.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 442530122 is about 21036.3999296458. The cubic root of 442530122 is about 762.0455754023.

Adding to 442530122 its reverse (221035244), we get a palindrome (663565366).

The spelling of 442530122 in words is "four hundred forty-two million, five hundred thirty thousand, one hundred twenty-two".