444434143 has 4 divisors (see below), whose sum is σ = 444587400. Its totient is φ = 444280888.

The previous prime is 444434141. The next prime is 444434161. The reversal of 444434143 is 341434444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444434143 - 2¹ = 444434141 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 (444434141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72193 + ... + 78106.

It is an arithmetic number, because the mean of its divisors is an integer number (111146850).

Almost surely, 2^444434143 is an apocalyptic number.

444434143 is a deficient number, since it is larger than the sum of its proper divisors (153257).

444434143 is a wasteful number, since it uses less digits than its factorization.

444434143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153256.

The product of its digits is 36864, while the sum is 31.

The square root of 444434143 is about 21081.6067461662. The cubic root of 444434143 is about 763.1369322182.

Adding to 444434143 its reverse (341434444), we get a palindrome (785868587).

The spelling of 444434143 in words is "four hundred forty-four million, four hundred thirty-four thousand, one hundred forty-three".