244304044021 has 4 divisors (see below), whose sum is σ = 246722896044. Its totient is φ = 241885192000.

The previous prime is 244304044007. The next prime is 244304044079. The reversal of 244304044021 is 120440403442.

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 227375431921 + 16928612100 = 476839^2 + 130110^2 .

It is a cyclic number.

It is not a de Polignac number, because 244304044021 - 2¹⁵ = 244304011253 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 (244304044081) 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, 1209425860 + ... + 1209426061.

It is an arithmetic number, because the mean of its divisors is an integer number (61680724011).

Almost surely, 2^244304044021 is an apocalyptic number.

It is an amenable number.

244304044021 is a deficient number, since it is larger than the sum of its proper divisors (2418852023).

244304044021 is a wasteful number, since it uses less digits than its factorization.

244304044021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418852022.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 244304044021 its reverse (120440403442), we get a palindrome (364744447463).

The spelling of 244304044021 in words is "two hundred forty-four billion, three hundred four million, forty-four thousand, twenty-one".