1444073351440 has 40 divisors (see below), whose sum is σ = 3368197343448. Its totient is φ = 575783869440.

The previous prime is 1444073351387. The next prime is 1444073351459. The reversal of 1444073351440 is 441533704441.

It can be written as a sum of positive squares in 4 ways, for example, as 159459656976 + 1284613694464 = 399324^2 + 1133408^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1444073351393 and 1444073351402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28810291 + ... + 28860370.

Almost surely, 2^{1444073351440} is an apocalyptic number.

1444073351440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444073351440 is an abundant number, since it is smaller than the sum of its proper divisors (1924123992008).

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

1444073351440 is a wasteful number, since it uses less digits than its factorization.

1444073351440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57670987 (or 57670981 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 1444073351440 in words is "one trillion, four hundred forty-four billion, seventy-three million, three hundred fifty-one thousand, four hundred forty".