442630201 has 4 divisors (see below), whose sum is σ = 476678692. Its totient is φ = 408581712.

The previous prime is 442630159. The next prime is 442630229. The reversal of 442630201 is 102036244.

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 2 ways, for example, as 161900176 + 280730025 = 12724^2 + 16755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442630201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442630501) 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, 17024226 + ... + 17024251.

It is an arithmetic number, because the mean of its divisors is an integer number (119169673).

Almost surely, 2^442630201 is an apocalyptic number.

It is an amenable number.

442630201 is a deficient number, since it is larger than the sum of its proper divisors (34048491).

442630201 is a wasteful number, since it uses less digits than its factorization.

442630201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34048490.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 442630201 is about 21038.7785054171. The cubic root of 442630201 is about 762.1030170745.

Adding to 442630201 its reverse (102036244), we get a palindrome (544666445).

The spelling of 442630201 in words is "four hundred forty-two million, six hundred thirty thousand, two hundred one".