244000009 has 6 divisors (see below), whose sum is σ = 268198490. Its totient is φ = 221818080.

The previous prime is 244000007. The next prime is 244000013. The reversal of 244000009 is 900000442.

It can be written as a sum of positive squares in only one way, i.e., 151782400 + 92217609 = 12320^2 + 9603^2 .

It is not a de Polignac number, because 244000009 - 2¹ = 244000007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244000009.

It is not an unprimeable number, because it can be changed into a prime (244000007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1008144 + ... + 1008385.

Almost surely, 2^244000009 is an apocalyptic number.

It is an amenable number.

244000009 is a deficient number, since it is larger than the sum of its proper divisors (24198481).

244000009 is a wasteful number, since it uses less digits than its factorization.

244000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016551 (or 2016540 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 244000009 is about 15620.4996398963. The cubic root of 244000009 is about 624.8799846356.

The spelling of 244000009 in words is "two hundred forty-four million, nine", and thus it is an aban number.