4440213 has 12 divisors (see below), whose sum is σ = 6791148. Its totient is φ = 2785920.

The previous prime is 4440209. The next prime is 4440221. The reversal of 4440213 is 3120444.

It can be written as a sum of positive squares in 2 ways, for example, as 4028049 + 412164 = 2007^2 + 642^2 .

It is not a de Polignac number, because 4440213 - 2² = 4440209 is a prime.

4440213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14358 + ... + 14663.

It is an arithmetic number, because the mean of its divisors is an integer number (565929).

Almost surely, 2^4440213 is an apocalyptic number.

It is an amenable number.

4440213 is a deficient number, since it is larger than the sum of its proper divisors (2350935).

4440213 is a wasteful number, since it uses less digits than its factorization.

4440213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29044 (or 29041 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4440213 is about 2107.1812926277. The cubic root of 4440213 is about 164.3619435238.

Adding to 4440213 its reverse (3120444), we get a palindrome (7560657).

The spelling of 4440213 in words is "four million, four hundred forty thousand, two hundred thirteen".