244044221 has 4 divisors (see below), whose sum is σ = 249719712. Its totient is φ = 238368732.

The previous prime is 244044211. The next prime is 244044233. The reversal of 244044221 is 122440442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 244044221 - 2¹⁰ = 244043197 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 (244044211) 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 3 ways as a sum of consecutive naturals, for example, 2837681 + ... + 2837766.

It is an arithmetic number, because the mean of its divisors is an integer number (62429928).

Almost surely, 2^244044221 is an apocalyptic number.

It is an amenable number.

244044221 is a deficient number, since it is larger than the sum of its proper divisors (5675491).

244044221 is an equidigital number, since it uses as much as digits as its factorization.

244044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675490.

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

The square root of 244044221 is about 15621.9147674029. The cubic root of 244044221 is about 624.9177244230.

Adding to 244044221 its reverse (122440442), we get a palindrome (366484663).

The spelling of 244044221 in words is "two hundred forty-four million, forty-four thousand, two hundred twenty-one".