244621313 has 4 divisors (see below), whose sum is σ = 259010820. Its totient is φ = 230231808.

The previous prime is 244621303. The next prime is 244621331. The reversal of 244621313 is 313126442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220581904 + 24039409 = 14852^2 + 4903^2 .

It is a cyclic number.

It is not a de Polignac number, because 244621313 - 2⁶ = 244621249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244621303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7194728 + ... + 7194761.

It is an arithmetic number, because the mean of its divisors is an integer number (64752705).

Almost surely, 2^244621313 is an apocalyptic number.

It is an amenable number.

244621313 is a deficient number, since it is larger than the sum of its proper divisors (14389507).

244621313 is a wasteful number, since it uses less digits than its factorization.

244621313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14389506.

The product of its digits is 3456, while the sum is 26.

The square root of 244621313 is about 15640.3744520392. The cubic root of 244621313 is about 625.4099181819.

Adding to 244621313 its reverse (313126442), we get a palindrome (557747755).

The spelling of 244621313 in words is "two hundred forty-four million, six hundred twenty-one thousand, three hundred thirteen".