442818011 has 8 divisors (see below), whose sum is σ = 462288384. Its totient is φ = 423365800.

The previous prime is 442818007. The next prime is 442818049. The reversal of 442818011 is 110818244.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 442818011 - 2² = 442818007 is a prime.

It is a super-2 number, since 2×442818011² = 392175581731992242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442818001) 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, 75536 + ... + 81186.

It is an arithmetic number, because the mean of its divisors is an integer number (57786048).

Almost surely, 2^442818011 is an apocalyptic number.

442818011 is a deficient number, since it is larger than the sum of its proper divisors (19470373).

442818011 is a wasteful number, since it uses less digits than its factorization.

442818011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 442818011 is about 21043.2414565817. The cubic root of 442818011 is about 762.2107897543.

The spelling of 442818011 in words is "four hundred forty-two million, eight hundred eighteen thousand, eleven".