4454445 has 16 divisors (see below), whose sum is σ = 7301952. Its totient is φ = 2317440.

The previous prime is 4454423. The next prime is 4454447. The reversal of 4454445 is 5444544.

It is a happy number.

It is not a de Polignac number, because 4454445 - 2⁶ = 4454381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3007 + ... + 4236.

It is an arithmetic number, because the mean of its divisors is an integer number (456372).

Almost surely, 2^4454445 is an apocalyptic number.

It is an amenable number.

4454445 is a deficient number, since it is larger than the sum of its proper divisors (2847507).

4454445 is a wasteful number, since it uses less digits than its factorization.

4454445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292.

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

The square root of 4454445 is about 2110.5556140505. Note that the first 3 decimals coincide. The cubic root of 4454445 is about 164.5373633652.

Adding to 4454445 its reverse (5444544), we get a palindrome (9898989).

Subtracting 4454445 from its reverse (5444544), we obtain a palindrome (990099).

The spelling of 4454445 in words is "four million, four hundred fifty-four thousand, four hundred forty-five".