1340320034434 has 16 divisors (see below), whose sum is σ = 2029362206400. Its totient is φ = 663866537584.

The previous prime is 1340320034423. The next prime is 1340320034453. The reversal of 1340320034434 is 4344300230431.

It is a junction number, because it is equal to n+sod(n) for n = 1340320034396 and 1340320034405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4985547 + ... + 5247505.

It is an arithmetic number, because the mean of its divisors is an integer number (126835137900).

Almost surely, 2^{1340320034434} is an apocalyptic number.

1340320034434 is a deficient number, since it is larger than the sum of its proper divisors (689042171966).

1340320034434 is a wasteful number, since it uses less digits than its factorization.

1340320034434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285977.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 1340320034434 its reverse (4344300230431), we get a palindrome (5684620264865).

The spelling of 1340320034434 in words is "one trillion, three hundred forty billion, three hundred twenty million, thirty-four thousand, four hundred thirty-four".