442212242 has 8 divisors (see below), whose sum is σ = 686191500. Its totient is φ = 213481744.

The previous prime is 442212227. The next prime is 442212263. The reversal of 442212242 is 242212244.

It can be written as a sum of positive squares in 2 ways, for example, as 427703761 + 14508481 = 20681^2 + 3809^2 .

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

It is an unprimeable number.

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, 3812117 + ... + 3812232.

Almost surely, 2^442212242 is an apocalyptic number.

442212242 is a deficient number, since it is larger than the sum of its proper divisors (243979258).

442212242 is a wasteful number, since it uses less digits than its factorization.

442212242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624380.

The product of its digits is 2048, while the sum is 23.

The square root of 442212242 is about 21028.8430970417. The cubic root of 442212242 is about 761.8630664907.

Adding to 442212242 its reverse (242212244), we get a palindrome (684424486).

The spelling of 442212242 in words is "four hundred forty-two million, two hundred twelve thousand, two hundred forty-two".