1244404214240 has 48 divisors (see below), whose sum is σ = 3207169047600. Its totient is φ = 452510622720.

The previous prime is 1244404214231. The next prime is 1244404214243. The reversal of 1244404214240 is 424124044421.

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 = 1244404214197 and 1244404214206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244404214243) 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, 353522165 + ... + 353525684.

It is an arithmetic number, because the mean of its divisors is an integer number (66816021825).

Almost surely, 2^{1244404214240} is an apocalyptic number.

1244404214240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244404214240 is an abundant number, since it is smaller than the sum of its proper divisors (1962764833360).

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

1244404214240 is a wasteful number, since it uses less digits than its factorization.

1244404214240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707047875 (or 707047867 counting only the distinct ones).

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

Adding to 1244404214240 its reverse (424124044421), we get a palindrome (1668528258661).

The spelling of 1244404214240 in words is "one trillion, two hundred forty-four billion, four hundred four million, two hundred fourteen thousand, two hundred forty".