244253221 has 8 divisors (see below), whose sum is σ = 247460864. Its totient is φ = 241066800.

The previous prime is 244253209. The next prime is 244253231. The reversal of 244253221 is 122352442.

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 244253221 - 2²⁷ = 110035493 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 (244253231) 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, 18556 + ... + 28858.

It is an arithmetic number, because the mean of its divisors is an integer number (30932608).

Almost surely, 2^244253221 is an apocalyptic number.

It is an amenable number.

244253221 is a deficient number, since it is larger than the sum of its proper divisors (3207643).

244253221 is a wasteful number, since it uses less digits than its factorization.

244253221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611.

The product of its digits is 3840, while the sum is 25.

The square root of 244253221 is about 15628.6026566677. The cubic root of 244253221 is about 625.0960671530.

The spelling of 244253221 in words is "two hundred forty-four million, two hundred fifty-three thousand, two hundred twenty-one".