1340304454540 has 12 divisors (see below), whose sum is σ = 2814639354576. Its totient is φ = 536121781808.

The previous prime is 1340304454429. The next prime is 1340304454637. The reversal of 1340304454540 is 454544030431.

It is a super-2 number, since 2×1340304454540² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340304454540.

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 3 ways as a sum of consecutive naturals, for example, 33507611344 + ... + 33507611383.

It is an arithmetic number, because the mean of its divisors is an integer number (234553279548).

Almost surely, 2^{1340304454540} is an apocalyptic number.

1340304454540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340304454540 is an abundant number, since it is smaller than the sum of its proper divisors (1474334900036).

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

1340304454540 is a wasteful number, since it uses less digits than its factorization.

1340304454540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67015222736 (or 67015222734 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 1340304454540 its reverse (454544030431), we get a palindrome (1794848484971).

The spelling of 1340304454540 in words is "one trillion, three hundred forty billion, three hundred four million, four hundred fifty-four thousand, five hundred forty".