340403304042 has 24 divisors (see below), whose sum is σ = 769607470944. Its totient is φ = 108534386664.

The previous prime is 340403304037. The next prime is 340403304089. The reversal of 340403304042 is 240403304043.

It is a junction number, because it is equal to n+sod(n) for n = 340403303997 and 340403304015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411114688 + ... + 411115515.

It is an arithmetic number, because the mean of its divisors is an integer number (32066977956).

Almost surely, 2^340403304042 is an apocalyptic number.

340403304042 is an abundant number, since it is smaller than the sum of its proper divisors (429204166902).

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

340403304042 is a wasteful number, since it uses less digits than its factorization.

340403304042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822230234 (or 822230231 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 340403304042 its reverse (240403304043), we get a palindrome (580806608085).

Subtracting from 340403304042 its reverse (240403304043), we obtain a palindrome (99999999999).

The spelling of 340403304042 in words is "three hundred forty billion, four hundred three million, three hundred four thousand, forty-two".