442242201 has 4 divisors (see below), whose sum is σ = 589656272. Its totient is φ = 294828132.

The previous prime is 442242197. The next prime is 442242209. The reversal of 442242201 is 102242244.

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 not a de Polignac number, because 442242201 - 2² = 442242197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442242209) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 73707031 + ... + 73707036.

It is an arithmetic number, because the mean of its divisors is an integer number (147414068).

Almost surely, 2^442242201 is an apocalyptic number.

It is an amenable number.

442242201 is a deficient number, since it is larger than the sum of its proper divisors (147414071).

442242201 is a wasteful number, since it uses less digits than its factorization.

442242201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147414070.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 442242201 is about 21029.5554161280. Note that the first 3 decimals coincide. The cubic root of 442242201 is about 761.8802710047.

Adding to 442242201 its reverse (102242244), we get a palindrome (544484445).

The spelling of 442242201 in words is "four hundred forty-two million, two hundred forty-two thousand, two hundred one".