1244302440400 has 240 divisors, whose sum is σ = 3272593397760. Its totient is φ = 452610662400.

The previous prime is 1244302440331. The next prime is 1244302440473. The reversal of 1244302440400 is 40442034421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142707241 + ... + 142715959.

It is an arithmetic number, because the mean of its divisors is an integer number (13635805824).

Almost surely, 2^{1244302440400} is an apocalyptic number.

1244302440400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244302440400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636296698880).

1244302440400 is an abundant number, since it is smaller than the sum of its proper divisors (2028290957360).

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

1244302440400 is a wasteful number, since it uses less digits than its factorization.

1244302440400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9462 (or 9451 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 1244302440400 its reverse (40442034421), we get a palindrome (1284744474821).

The spelling of 1244302440400 in words is "one trillion, two hundred forty-four billion, three hundred two million, four hundred forty thousand, four hundred".