4421445 has 32 divisors (see below), whose sum is σ = 8563968. Its totient is φ = 1901568.

The previous prime is 4421423. The next prime is 4421447. The reversal of 4421445 is 5441244.

It is a happy number.

It is not a de Polignac number, because 4421445 - 2⁵ = 4421413 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421447) 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, 547 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (267624).

Almost surely, 2^4421445 is an apocalyptic number.

It is an amenable number.

4421445 is a deficient number, since it is larger than the sum of its proper divisors (4142523).

4421445 is a wasteful number, since it uses less digits than its factorization.

4421445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509.

The product of its digits is 2560, while the sum is 24.

The square root of 4421445 is about 2102.7232342845. The cubic root of 4421445 is about 164.1300401282.

Adding to 4421445 its reverse (5441244), we get a palindrome (9862689).

The spelling of 4421445 in words is "four million, four hundred twenty-one thousand, four hundred forty-five".