442883811 has 8 divisors (see below), whose sum is σ = 590609680. Its totient is φ = 295206912.

The previous prime is 442883809. The next prime is 442883893. The reversal of 442883811 is 118388244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442883811 - 2¹ = 442883809 is a prime.

It is a super-2 number, since 2×442883811² = 392292140091767442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442883811.

It is not an unprimeable number, because it can be changed into a prime (442884811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25395 + ... + 39123.

It is an arithmetic number, because the mean of its divisors is an integer number (73826210).

Almost surely, 2^442883811 is an apocalyptic number.

442883811 is a deficient number, since it is larger than the sum of its proper divisors (147725869).

442883811 is a wasteful number, since it uses less digits than its factorization.

442883811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24485.

The product of its digits is 49152, while the sum is 39.

The square root of 442883811 is about 21044.8048458521. The cubic root of 442883811 is about 762.2485411441.

The spelling of 442883811 in words is "four hundred forty-two million, eight hundred eighty-three thousand, eight hundred eleven".