244422021 has 8 divisors (see below), whose sum is σ = 326081344. Its totient is φ = 162855360.

The previous prime is 244422007. The next prime is 244422029. The reversal of 244422021 is 120224442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 244422021 - 2²⁵ = 210867589 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 (244422029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16756 + ... + 27741.

It is an arithmetic number, because the mean of its divisors is an integer number (40760168).

Almost surely, 2^244422021 is an apocalyptic number.

It is an amenable number.

244422021 is a deficient number, since it is larger than the sum of its proper divisors (81659323).

244422021 is a wasteful number, since it uses less digits than its factorization.

244422021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46331.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 244422021 is about 15634.0020788025. The cubic root of 244422021 is about 625.2400323900.

Adding to 244422021 its reverse (120224442), we get a palindrome (364646463).

The spelling of 244422021 in words is "two hundred forty-four million, four hundred twenty-two thousand, twenty-one".