1240403023344 has 40 divisors (see below), whose sum is σ = 3205532888320. Its totient is φ = 413318202048.

The previous prime is 1240403023319. The next prime is 1240403023367. The reversal of 1240403023344 is 4433203040421.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4536814 + ... + 4802445.

It is an arithmetic number, because the mean of its divisors is an integer number (80138322208).

Almost surely, 2^{1240403023344} is an apocalyptic number.

It is an amenable number.

1240403023344 is an abundant number, since it is smaller than the sum of its proper divisors (1965129864976).

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

1240403023344 is a wasteful number, since it uses less digits than its factorization.

1240403023344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342037 (or 9342031 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 1240403023344 its reverse (4433203040421), we get a palindrome (5673606063765).

The spelling of 1240403023344 in words is "one trillion, two hundred forty billion, four hundred three million, twenty-three thousand, three hundred forty-four".