1244324420240 has 80 divisors (see below), whose sum is σ = 3322167635520. Its totient is φ = 428666780160.

The previous prime is 1244324420233. The next prime is 1244324420257. The reversal of 1244324420240 is 420244234421.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1244324420240² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1244324420197 and 1244324420206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37193939 + ... + 37227378.

It is an arithmetic number, because the mean of its divisors is an integer number (41527095444).

Almost surely, 2^{1244324420240} is an apocalyptic number.

1244324420240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244324420240 is an abundant number, since it is smaller than the sum of its proper divisors (2077843215280).

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

1244324420240 is a wasteful number, since it uses less digits than its factorization.

1244324420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74421360 (or 74421354 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 1244324420240 its reverse (420244234421), we get a palindrome (1664568654661).

The spelling of 1244324420240 in words is "one trillion, two hundred forty-four billion, three hundred twenty-four million, four hundred twenty thousand, two hundred forty".