4443345 has 24 divisors (see below), whose sum is σ = 7751016. Its totient is φ = 2354688.

The previous prime is 4443331. The next prime is 4443353. The reversal of 4443345 is 5433444.

It can be written as a sum of positive squares in 4 ways, for example, as 938961 + 3504384 = 969^2 + 1872^2 .

It is not a de Polignac number, because 4443345 - 2¹⁹ = 3919057 is a prime.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13017 + ... + 13353.

It is an arithmetic number, because the mean of its divisors is an integer number (322959).

Almost surely, 2^4443345 is an apocalyptic number.

4443345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4443345 is a deficient number, since it is larger than the sum of its proper divisors (3307671).

4443345 is a wasteful number, since it uses less digits than its factorization.

4443345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 638 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 4443345 is about 2107.9243345054. The cubic root of 4443345 is about 164.4005798548.

Adding to 4443345 its reverse (5433444), we get a palindrome (9876789).

Subtracting 4443345 from its reverse (5433444), we obtain a palindrome (990099).

The spelling of 4443345 in words is "four million, four hundred forty-three thousand, three hundred forty-five".