1340400040530 has 32 divisors (see below), whose sum is σ = 3248811194688. Its totient is φ = 353901000000.

The previous prime is 1340400040517. The next prime is 1340400040531. The reversal of 1340400040530 is 350400040431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340400040530.

It is not an unprimeable number, because it can be changed into a prime (1340400040531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 221185096 + ... + 221191155.

It is an arithmetic number, because the mean of its divisors is an integer number (101525349834).

Almost surely, 2^{1340400040530} is an apocalyptic number.

1340400040530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340400040530 is an abundant number, since it is smaller than the sum of its proper divisors (1908411154158).

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

1340400040530 is a wasteful number, since it uses less digits than its factorization.

1340400040530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442376362.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 1340400040530 its reverse (350400040431), we get a palindrome (1690800080961).

Subtracting from 1340400040530 its reverse (350400040431), we obtain a palindrome (990000000099).

The spelling of 1340400040530 in words is "one trillion, three hundred forty billion, four hundred million, forty thousand, five hundred thirty".