444021343 has 4 divisors (see below), whose sum is σ = 445927248. Its totient is φ = 442115440.

The previous prime is 444021323. The next prime is 444021373. The reversal of 444021343 is 343120444.

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 444021343 - 2²⁵ = 410466911 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 (444021313) 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, 952603 + ... + 953068.

It is an arithmetic number, because the mean of its divisors is an integer number (111481812).

Almost surely, 2^444021343 is an apocalyptic number.

444021343 is a deficient number, since it is larger than the sum of its proper divisors (1905905).

444021343 is a wasteful number, since it uses less digits than its factorization.

444021343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905904.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 444021343 is about 21071.8139465970. The cubic root of 444021343 is about 762.9005863582.

Adding to 444021343 its reverse (343120444), we get a palindrome (787141787).

The spelling of 444021343 in words is "four hundred forty-four million, twenty-one thousand, three hundred forty-three".