244393321 has 4 divisors (see below), whose sum is σ = 244504144. Its totient is φ = 244282500.

The previous prime is 244393319. The next prime is 244393361. The reversal of 244393321 is 123393442.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123393442 = 2 ⋅61696721.

It is a cyclic number.

It is not a de Polignac number, because 244393321 - 2¹ = 244393319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244393361) 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 3 ways as a sum of consecutive naturals, for example, 52035 + ... + 56536.

It is an arithmetic number, because the mean of its divisors is an integer number (61126036).

Almost surely, 2^244393321 is an apocalyptic number.

It is an amenable number.

244393321 is a deficient number, since it is larger than the sum of its proper divisors (110823).

244393321 is a wasteful number, since it uses less digits than its factorization.

244393321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110822.

The product of its digits is 15552, while the sum is 31.

The square root of 244393321 is about 15633.0841806727. The cubic root of 244393321 is about 625.2155595660.

The spelling of 244393321 in words is "two hundred forty-four million, three hundred ninety-three thousand, three hundred twenty-one".