442143341 has 4 divisors (see below), whose sum is σ = 448370784. Its totient is φ = 435915900.

The previous prime is 442143307. The next prime is 442143347. The reversal of 442143341 is 143341244.

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 a de Polignac number, because none of the positive numbers 2^k-442143341 is a prime.

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 442143341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442143347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113615 + ... + 3113756.

It is an arithmetic number, because the mean of its divisors is an integer number (112092696).

Almost surely, 2^442143341 is an apocalyptic number.

It is an amenable number.

442143341 is a deficient number, since it is larger than the sum of its proper divisors (6227443).

442143341 is an equidigital number, since it uses as much as digits as its factorization.

442143341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227442.

The product of its digits is 4608, while the sum is 26.

The square root of 442143341 is about 21027.2047833277. The cubic root of 442143341 is about 761.8234958587.

Adding to 442143341 its reverse (143341244), we get a palindrome (585484585).

The spelling of 442143341 in words is "four hundred forty-two million, one hundred forty-three thousand, three hundred forty-one".