442121341 has 4 divisors (see below), whose sum is σ = 461344032. Its totient is φ = 422898652.

The previous prime is 442121333. The next prime is 442121357. The reversal of 442121341 is 143121244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442121341 - 2³ = 442121333 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 (442121321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9611311 + ... + 9611356.

It is an arithmetic number, because the mean of its divisors is an integer number (115336008).

Almost surely, 2^442121341 is an apocalyptic number.

It is an amenable number.

442121341 is a deficient number, since it is larger than the sum of its proper divisors (19222691).

442121341 is a wasteful number, since it uses less digits than its factorization.

442121341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19222690.

The product of its digits is 768, while the sum is 22.

The square root of 442121341 is about 21026.6816449957. The cubic root of 442121341 is about 761.8108601413.

Adding to 442121341 its reverse (143121244), we get a palindrome (585242585).

The spelling of 442121341 in words is "four hundred forty-two million, one hundred twenty-one thousand, three hundred forty-one".