442040611 has 4 divisors (see below), whose sum is σ = 461259792. Its totient is φ = 422821432.

The previous prime is 442040609. The next prime is 442040633. The reversal of 442040611 is 116040244.

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

It is a cyclic number.

It is not a de Polignac number, because 442040611 - 2¹ = 442040609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442440611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9609556 + ... + 9609601.

It is an arithmetic number, because the mean of its divisors is an integer number (115314948).

Almost surely, 2^442040611 is an apocalyptic number.

442040611 is a deficient number, since it is larger than the sum of its proper divisors (19219181).

442040611 is a wasteful number, since it uses less digits than its factorization.

442040611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19219180.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 442040611 is about 21024.7618535859. The cubic root of 442040611 is about 761.7644892104.

Adding to 442040611 its reverse (116040244), we get a palindrome (558080855).

The spelling of 442040611 in words is "four hundred forty-two million, forty thousand, six hundred eleven".