442240315021 has 8 divisors (see below), whose sum is σ = 444986824544. Its totient is φ = 439494212880.

The previous prime is 442240314991. The next prime is 442240315037. The reversal of 442240315021 is 120513042244.

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 442240315021 - 2¹¹ = 442240312973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442244315021) 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, 2242990 + ... + 2432176.

It is an arithmetic number, because the mean of its divisors is an integer number (55623353068).

Almost surely, 2^442240315021 is an apocalyptic number.

It is an amenable number.

442240315021 is a deficient number, since it is larger than the sum of its proper divisors (2746509523).

442240315021 is a wasteful number, since it uses less digits than its factorization.

442240315021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203691.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 442240315021 its reverse (120513042244), we get a palindrome (562753357265).

The spelling of 442240315021 in words is "four hundred forty-two billion, two hundred forty million, three hundred fifteen thousand, twenty-one".