1444339286920 has 32 divisors (see below), whose sum is σ = 3252693850200. Its totient is φ = 577214745088.

The previous prime is 1444339286909. The next prime is 1444339286921. The reversal of 1444339286920 is 296829334441.

It can be written as a sum of positive squares in 4 ways, for example, as 302634214884 + 1141705072036 = 550122^2 + 1068506^2 .

It is a super-2 number, since 2×1444339286920² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1444339286921) 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, 16235389 + ... + 16324108.

Almost surely, 2^{1444339286920} is an apocalyptic number.

1444339286920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444339286920 is an abundant number, since it is smaller than the sum of its proper divisors (1808354563280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444339286920 is a wasteful number, since it uses less digits than its factorization.

1444339286920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32560617 (or 32560613 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 1444339286920 in words is "one trillion, four hundred forty-four billion, three hundred thirty-nine million, two hundred eighty-six thousand, nine hundred twenty".