4443445 has 4 divisors (see below), whose sum is σ = 5332140. Its totient is φ = 3554752.

The previous prime is 4443433. The next prime is 4443463. The reversal of 4443445 is 5443444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2187441 + 2256004 = 1479^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 4443445 - 2¹¹ = 4441397 is a prime.

4443445 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444340 + ... + 444349.

It is an arithmetic number, because the mean of its divisors is an integer number (1333035).

Almost surely, 2^4443445 is an apocalyptic number.

It is an amenable number.

4443445 is a deficient number, since it is larger than the sum of its proper divisors (888695).

4443445 is an equidigital number, since it uses as much as digits as its factorization.

4443445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888694.

The product of its digits is 15360, while the sum is 28.

The square root of 4443445 is about 2107.9480543884. The cubic root of 4443445 is about 164.4018131550.

Adding to 4443445 its reverse (5443444), we get a palindrome (9886889).

Subtracting 4443445 from its reverse (5443444), we obtain a palindrome (999999).

The spelling of 4443445 in words is "four million, four hundred forty-three thousand, four hundred forty-five".