244013213 has 8 divisors (see below), whose sum is σ = 245855736. Its totient is φ = 242176000.

The previous prime is 244013197. The next prime is 244013227. The reversal of 244013213 is 312310442.

It can be written as a sum of positive squares in 4 ways, for example, as 131377444 + 112635769 = 11462^2 + 10613^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 244013213 - 2⁴ = 244013197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244063213) 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, 151613 + ... + 153213.

It is an arithmetic number, because the mean of its divisors is an integer number (30731967).

Almost surely, 2^244013213 is an apocalyptic number.

It is an amenable number.

244013213 is a deficient number, since it is larger than the sum of its proper divisors (1842523).

244013213 is a wasteful number, since it uses less digits than its factorization.

244013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 244013213 is about 15620.9222839114. The cubic root of 244013213 is about 624.8912561741.

Adding to 244013213 its reverse (312310442), we get a palindrome (556323655).

The spelling of 244013213 in words is "two hundred forty-four million, thirteen thousand, two hundred thirteen".