1238440448321 has 8 divisors (see below), whose sum is σ = 1244406000288. Its totient is φ = 1232475804000.

The previous prime is 1238440448299. The next prime is 1238440448339.

1238440448321 is nontrivially palindromic in base 10.

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 1238440448321 - 2⁶ = 1238440448257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1238440448521) 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, 2592701 + ... + 3032981.

It is an arithmetic number, because the mean of its divisors is an integer number (155550750036).

Almost surely, 2^{1238440448321} is an apocalyptic number.

It is an amenable number.

1238440448321 is a deficient number, since it is larger than the sum of its proper divisors (5965551967).

1238440448321 is a wasteful number, since it uses less digits than its factorization.

1238440448321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453823.

The product of its (nonzero) digits is 589824, while the sum is 44.

The spelling of 1238440448321 in words is "one trillion, two hundred thirty-eight billion, four hundred forty million, four hundred forty-eight thousand, three hundred twenty-one".