244401321 has 4 divisors (see below), whose sum is σ = 325868432. Its totient is φ = 162934212.

The previous prime is 244401307. The next prime is 244401323. The reversal of 244401321 is 123104442.

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 not a de Polignac number, because 244401321 - 2¹⁰ = 244400297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244401323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40733551 + ... + 40733556.

It is an arithmetic number, because the mean of its divisors is an integer number (81467108).

Almost surely, 2^244401321 is an apocalyptic number.

It is an amenable number.

244401321 is a deficient number, since it is larger than the sum of its proper divisors (81467111).

244401321 is an equidigital number, since it uses as much as digits as its factorization.

244401321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81467110.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 244401321 is about 15633.3400461961. The cubic root of 244401321 is about 625.2223814517. Note that the first 3 decimals are identical.

Adding to 244401321 its reverse (123104442), we get a palindrome (367505763).

The spelling of 244401321 in words is "two hundred forty-four million, four hundred one thousand, three hundred twenty-one".