5220244 has 6 divisors (see below), whose sum is σ = 9135434. Its totient is φ = 2610120.

The previous prime is 5220239. The next prime is 5220247. The reversal of 5220244 is 4420225.

It can be written as a sum of positive squares in only one way, i.e., 5008644 + 211600 = 2238^2 + 460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5220247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652527 + ... + 652534.

Almost surely, 2^5220244 is an apocalyptic number.

It is an amenable number.

5220244 is a deficient number, since it is larger than the sum of its proper divisors (3915190).

5220244 is a wasteful number, since it uses less digits than its factorization.

5220244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305065 (or 1305063 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 5220244 is about 2284.7853290846. The cubic root of 5220244 is about 173.4723523120.

Subtracting from 5220244 its sum of digits (19), we obtain a palindrome (5220225).

Adding to 5220244 its reverse (4420225), we get a palindrome (9640469).

The spelling of 5220244 in words is "five million, two hundred twenty thousand, two hundred forty-four".