4544445 has 32 divisors (see below), whose sum is σ = 7787520. Its totient is φ = 2257920.

The previous prime is 4544443. The next prime is 4544453. The reversal of 4544445 is 5444454.

It is a happy number.

It is not a de Polignac number, because 4544445 - 2¹ = 4544443 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13317 + ... + 13653.

It is an arithmetic number, because the mean of its divisors is an integer number (243360).

Almost surely, 2^4544445 is an apocalyptic number.

It is an amenable number.

4544445 is a deficient number, since it is larger than the sum of its proper divisors (3243075).

4544445 is a wasteful number, since it uses less digits than its factorization.

4544445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its digits is 25600, while the sum is 30.

The square root of 4544445 is about 2131.7703910131. The cubic root of 4544445 is about 165.6381166781.

Adding to 4544445 its reverse (5444454), we get a palindrome (9988899).

Subtracting 4544445 from its reverse (5444454), we obtain a palindrome (900009).

The spelling of 4544445 in words is "four million, five hundred forty-four thousand, four hundred forty-five".