442363811 has 4 divisors (see below), whose sum is σ = 450710352. Its totient is φ = 434017272.

The previous prime is 442363799. The next prime is 442363829. The reversal of 442363811 is 118363244.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442363811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442363841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4173191 + ... + 4173296.

It is an arithmetic number, because the mean of its divisors is an integer number (112677588).

Almost surely, 2^442363811 is an apocalyptic number.

442363811 is a deficient number, since it is larger than the sum of its proper divisors (8346541).

442363811 is an equidigital number, since it uses as much as digits as its factorization.

442363811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346540.

The product of its digits is 13824, while the sum is 32.

The square root of 442363811 is about 21032.4466242042. The cubic root of 442363811 is about 761.9500998362.

The spelling of 442363811 in words is "four hundred forty-two million, three hundred sixty-three thousand, eight hundred eleven".