442040310221 has 8 divisors (see below), whose sum is σ = 453063881088. Its totient is φ = 431028268000.

The previous prime is 442040310197. The next prime is 442040310241. The reversal of 442040310221 is 122013040244.

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 442040310221 - 2¹⁸ = 442040048077 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 (442040310241) 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, 2804495 + ... + 2957916.

It is an arithmetic number, because the mean of its divisors is an integer number (56632985136).

Almost surely, 2^442040310221 is an apocalyptic number.

442040310221 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

442040310221 is a deficient number, since it is larger than the sum of its proper divisors (11023570867).

442040310221 is a wasteful number, since it uses less digits than its factorization.

442040310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764323.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 442040310221 its reverse (122013040244), we get a palindrome (564053350465).

The spelling of 442040310221 in words is "four hundred forty-two billion, forty million, three hundred ten thousand, two hundred twenty-one".