1244384339421 has 16 divisors (see below), whose sum is σ = 1688144399360. Its totient is φ = 815206457520.

The previous prime is 1244384339389. The next prime is 1244384339423. The reversal of 1244384339421 is 1249334834421.

It is not a de Polignac number, because 1244384339421 - 2⁵ = 1244384339389 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 (1244384339423) 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, 12392095 + ... + 12492108.

It is an arithmetic number, because the mean of its divisors is an integer number (105509024960).

Almost surely, 2^{1244384339421} is an apocalyptic number.

It is an amenable number.

1244384339421 is a deficient number, since it is larger than the sum of its proper divisors (443760059939).

1244384339421 is a wasteful number, since it uses less digits than its factorization.

1244384339421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24884496.

The product of its digits is 1990656, while the sum is 48.

The spelling of 1244384339421 in words is "one trillion, two hundred forty-four billion, three hundred eighty-four million, three hundred thirty-nine thousand, four hundred twenty-one".