442511141 has 4 divisors (see below), whose sum is σ = 449765484. Its totient is φ = 435256800.

The previous prime is 442511131. The next prime is 442511149. The reversal of 442511141 is 141115244.

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 3818116 + 438693025 = 1954^2 + 20945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442511141 is a prime.

It is a super-2 number, since 2×442511141² = 391632219818243762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442511149) 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, 3627080 + ... + 3627201.

It is an arithmetic number, because the mean of its divisors is an integer number (112441371).

Almost surely, 2^442511141 is an apocalyptic number.

It is an amenable number.

442511141 is a deficient number, since it is larger than the sum of its proper divisors (7254343).

442511141 is an equidigital number, since it uses as much as digits as its factorization.

442511141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254342.

The product of its digits is 640, while the sum is 23.

The square root of 442511141 is about 21035.9487782225. The cubic root of 442511141 is about 762.0346800280.

Adding to 442511141 its reverse (141115244), we get a palindrome (583626385).

The spelling of 442511141 in words is "four hundred forty-two million, five hundred eleven thousand, one hundred forty-one".