244342221 has 16 divisors (see below), whose sum is σ = 328204800. Its totient is φ = 161692848.

The previous prime is 244342213. The next prime is 244342253. The reversal of 244342221 is 122243442.

It is not a de Polignac number, because 244342221 - 2³ = 244342213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 244342191 and 244342200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244342201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330270 + ... + 331008.

It is an arithmetic number, because the mean of its divisors is an integer number (20512800).

Almost surely, 2^244342221 is an apocalyptic number.

It is an amenable number.

244342221 is a deficient number, since it is larger than the sum of its proper divisors (83862579).

244342221 is a wasteful number, since it uses less digits than its factorization.

244342221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408.

The product of its digits is 3072, while the sum is 24.

The square root of 244342221 is about 15631.4497408270. The cubic root of 244342221 is about 625.1719812582.

Adding to 244342221 its reverse (122243442), we get a palindrome (366585663).

The spelling of 244342221 in words is "two hundred forty-four million, three hundred forty-two thousand, two hundred twenty-one".