4744221 has 8 divisors (see below), whose sum is σ = 6343680. Its totient is φ = 3153792.

The previous prime is 4744219. The next prime is 4744237. The reversal of 4744221 is 1224474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4744221 - 2¹ = 4744219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4744191 and 4744200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4744211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (792960).

Almost surely, 2^4744221 is an apocalyptic number.

It is an amenable number.

4744221 is a deficient number, since it is larger than the sum of its proper divisors (1599459).

4744221 is a wasteful number, since it uses less digits than its factorization.

4744221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515.

The product of its digits is 1792, while the sum is 24.

The square root of 4744221 is about 2178.1232747482. The cubic root of 4744221 is about 168.0305712506.

Adding to 4744221 its reverse (1224474), we get a palindrome (5968695).

The spelling of 4744221 in words is "four million, seven hundred forty-four thousand, two hundred twenty-one".