244443121 has 6 divisors (see below), whose sum is σ = 264693030. Its totient is φ = 225639648.

The previous prime is 244443097. The next prime is 244443139. The reversal of 244443121 is 121344442.

It can be written as a sum of positive squares in 3 ways, for example, as 20611600 + 223831521 = 4540^2 + 14961^2 .

It is not a de Polignac number, because 244443121 - 2¹³ = 244434929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244443181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723036 + ... + 723373.

It is an arithmetic number, because the mean of its divisors is an integer number (44115505).

Almost surely, 2^244443121 is an apocalyptic number.

It is an amenable number.

244443121 is a deficient number, since it is larger than the sum of its proper divisors (20249909).

244443121 is a wasteful number, since it uses less digits than its factorization.

244443121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446435 (or 1446422 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 244443121 is about 15634.6768754586. The cubic root of 244443121 is about 625.2580233836.

Adding to 244443121 its reverse (121344442), we get a palindrome (365787563).

The spelling of 244443121 in words is "two hundred forty-four million, four hundred forty-three thousand, one hundred twenty-one".