4224644 has 6 divisors (see below), whose sum is σ = 7393134. Its totient is φ = 2112320.

The previous prime is 4224637. The next prime is 4224667. The reversal of 4224644 is 4464224.

It can be written as a sum of positive squares in only one way, i.e., 3378244 + 846400 = 1838^2 + 920^2 .

It is a d-powerful number, because it can be written as 4 + 2⁵ + 2¹¹ + 4⁶ + 6⁵ + 4⁷ + 4¹¹ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528077 + ... + 528084.

It is an arithmetic number, because the mean of its divisors is an integer number (1232189).

Almost surely, 2^4224644 is an apocalyptic number.

It is an amenable number.

4224644 is a deficient number, since it is larger than the sum of its proper divisors (3168490).

4224644 is a wasteful number, since it uses less digits than its factorization.

4224644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056165 (or 1056163 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 4224644 is about 2055.3938795277. The cubic root of 4224644 is about 161.6578155544.

Adding to 4224644 its reverse (4464224), we get a palindrome (8688868).

The spelling of 4224644 in words is "four million, two hundred twenty-four thousand, six hundred forty-four".