4505445 has 24 divisors (see below), whose sum is σ = 8925696. Its totient is φ = 2059488.

The previous prime is 4505437. The next prime is 4505491. The reversal of 4505445 is 5445054.

It is not a de Polignac number, because 4505445 - 2³ = 4505437 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6837 + ... + 7466.

It is an arithmetic number, because the mean of its divisors is an integer number (371904).

Almost surely, 2^4505445 is an apocalyptic number.

4505445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4505445 is a deficient number, since it is larger than the sum of its proper divisors (4420251).

4505445 is a wasteful number, since it uses less digits than its factorization.

4505445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14321 (or 14318 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 4505445 is about 2122.6033543741. The cubic root of 4505445 is about 165.1629244714.

It can be divided in two parts, 4505 and 445, that added together give a triangular number (4950 = T₉₉).

The spelling of 4505445 in words is "four million, five hundred five thousand, four hundred forty-five".