1244433040000 has 80 divisors (see below), whose sum is σ = 3097938475170. Its totient is φ = 497773184000.

The previous prime is 1244433039977. The next prime is 1244433040033. The reversal of 1244433040000 is 403344421.

It can be written as a sum of positive squares in 5 ways, for example, as 1315077696 + 1243117962304 = 36264^2 + 1114952^2 .

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

It is a super-2 number, since 2×1244433040000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 9 ways as a sum of consecutive naturals, for example, 7697707 + ... + 7857706.

Almost surely, 2^{1244433040000} is an apocalyptic number.

1244433040000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244433040000 is an abundant number, since it is smaller than the sum of its proper divisors (1853505435170).

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

1244433040000 is an frugal number, since it uses more digits than its factorization.

1244433040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555447 (or 15555420 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 1244433040000 its reverse (403344421), we get a palindrome (1244836384421).

The spelling of 1244433040000 in words is "one trillion, two hundred forty-four billion, four hundred thirty-three million, forty thousand".