1244235040000 has 90 divisors (see below), whose sum is σ = 3103519188770. Its totient is φ = 497693952000.

The previous prime is 1244235039991. The next prime is 1244235040033. The reversal of 1244235040000 is 405324421.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 533086896384 + 711148143616 = 730128^2 + 843296^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3728235 + ... + 4048234.

Almost surely, 2^{1244235040000} is an apocalyptic number.

1244235040000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244235040000 is an abundant number, since it is smaller than the sum of its proper divisors (1859284148770).

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

1244235040000 is an frugal number, since it uses more digits than its factorization.

1244235040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776505 (or 7776476 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The spelling of 1244235040000 in words is "one trillion, two hundred forty-four billion, two hundred thirty-five million, forty thousand".