4446445 has 4 divisors (see below), whose sum is σ = 5335740. Its totient is φ = 3557152.

The previous prime is 4446433. The next prime is 4446451. The reversal of 4446445 is 5446444.

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 2604996 + 1841449 = 1614^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 4446445 - 2⁵ = 4446413 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 444640 + ... + 444649.

It is an arithmetic number, because the mean of its divisors is an integer number (1333935).

Almost surely, 2^4446445 is an apocalyptic number.

It is an amenable number.

4446445 is a deficient number, since it is larger than the sum of its proper divisors (889295).

4446445 is an equidigital number, since it uses as much as digits as its factorization.

4446445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889294.

The product of its digits is 30720, while the sum is 31.

The square root of 4446445 is about 2108.6595268084. The cubic root of 4446445 is about 164.4388035596.

Subtracting 4446445 from its reverse (5446444), we obtain a palindrome (999999).

It can be divided in two parts, 444 and 6445, that added together give a square (6889 = 83²).

The spelling of 4446445 in words is "four million, four hundred forty-six thousand, four hundred forty-five".