340306306540 has 48 divisors (see below), whose sum is σ = 719380509120. Its totient is φ = 135221840640.

The previous prime is 340306306523. The next prime is 340306306597. The reversal of 340306306540 is 45603603043.

It is a junction number, because it is equal to n+sod(n) for n = 340306306496 and 340306306505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3275634 + ... + 3377926.

It is an arithmetic number, because the mean of its divisors is an integer number (14987093940).

Almost surely, 2^340306306540 is an apocalyptic number.

It is an amenable number.

340306306540 is an abundant number, since it is smaller than the sum of its proper divisors (379074202580).

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

340306306540 is a wasteful number, since it uses less digits than its factorization.

340306306540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103402 (or 103400 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 340306306540 its reverse (45603603043), we get a palindrome (385909909583).

The spelling of 340306306540 in words is "three hundred forty billion, three hundred six million, three hundred six thousand, five hundred forty".