1444421222240 has 48 divisors (see below), whose sum is σ = 3412706910480. Its totient is φ = 577724167680.

The previous prime is 1444421222239. The next prime is 1444421222263. The reversal of 1444421222240 is 422221244441.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1444421222197 and 1444421222206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786946 + ... + 2466174.

It is an arithmetic number, because the mean of its divisors is an integer number (71098060635).

Almost surely, 2^{1444421222240} is an apocalyptic number.

1444421222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444421222240 is an abundant number, since it is smaller than the sum of its proper divisors (1968285688240).

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

1444421222240 is a wasteful number, since it uses less digits than its factorization.

1444421222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692535 (or 692527 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 1444421222240 its reverse (422221244441), we get a palindrome (1866642466681).

It can be divided in two parts, 1444421 and 222240, that added together give a palindrome (1666661).

The spelling of 1444421222240 in words is "one trillion, four hundred forty-four billion, four hundred twenty-one million, two hundred twenty-two thousand, two hundred forty".