1240003400244 has 48 divisors (see below), whose sum is σ = 3396045356928. Its totient is φ = 344711369088.

The previous prime is 1240003400203. The next prime is 1240003400257. The reversal of 1240003400244 is 4420043000421.

It is a happy number.

It is a congruent number.

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, 199482639 + ... + 199488854.

It is an arithmetic number, because the mean of its divisors is an integer number (70750944936).

Almost surely, 2^{1240003400244} is an apocalyptic number.

1240003400244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1240003400244 is an abundant number, since it is smaller than the sum of its proper divisors (2156041956684).

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

1240003400244 is a wasteful number, since it uses less digits than its factorization.

1240003400244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398971544 (or 398971542 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1240003400244 its reverse (4420043000421), we get a palindrome (5660046400665).

The spelling of 1240003400244 in words is "one trillion, two hundred forty billion, three million, four hundred thousand, two hundred forty-four".