244404221 has 8 divisors (see below), whose sum is σ = 246626688. Its totient is φ = 242190000.

The previous prime is 244404191. The next prime is 244404227. The reversal of 244404221 is 122404442.

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 244404221 - 2¹⁴ = 244387837 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 (244404227) 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, 67856 + ... + 71366.

It is an arithmetic number, because the mean of its divisors is an integer number (30828336).

Almost surely, 2^244404221 is an apocalyptic number.

It is an amenable number.

244404221 is a deficient number, since it is larger than the sum of its proper divisors (2222467).

244404221 is a wasteful number, since it uses less digits than its factorization.

244404221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 244404221 is about 15633.4327964142. The cubic root of 244404221 is about 625.2248543485.

Adding to 244404221 its reverse (122404442), we get a palindrome (366808663).

The spelling of 244404221 in words is "two hundred forty-four million, four hundred four thousand, two hundred twenty-one".