4224641 has 6 divisors (see below), whose sum is σ = 4278150. Its totient is φ = 4171776.

The previous prime is 4224637. The next prime is 4224667. The reversal of 4224641 is 1464224.

It can be written as a sum of positive squares in 3 ways, for example, as 633616 + 3591025 = 796^2 + 1895^2 .

It is not a de Polignac number, because 4224641 - 2² = 4224637 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2⁵ + 2¹¹ + 4⁷ + 6⁵ + 4¹¹ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4224601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9185 + ... + 9633.

It is an arithmetic number, because the mean of its divisors is an integer number (713025).

Almost surely, 2^4224641 is an apocalyptic number.

It is an amenable number.

4224641 is a deficient number, since it is larger than the sum of its proper divisors (53509).

4224641 is an frugal number, since it uses more digits than its factorization.

4224641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 546 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 4224641 is about 2055.3931497405. The cubic root of 4224641 is about 161.6577772890.

Adding to 4224641 its reverse (1464224), we get a palindrome (5688865).

The spelling of 4224641 in words is "four million, two hundred twenty-four thousand, six hundred forty-one".