340420343024042 has 8 divisors (see below), whose sum is σ = 512473945997316. Its totient is φ = 169595694358272.

The previous prime is 340420343024039. The next prime is 340420343024147. The reversal of 340420343024042 is 240420343024043.

It can be written as a sum of positive squares in 2 ways, for example, as 328059359783281 + 12360983240761 = 18112409^2 + 3515819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 340420343023993 and 340420343024011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307238576183 + ... + 307238577290.

Almost surely, 2^{340420343024042} is an apocalyptic number.

340420343024042 is a deficient number, since it is larger than the sum of its proper divisors (172053602973274).

340420343024042 is a wasteful number, since it uses less digits than its factorization.

340420343024042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614477153752.

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 340420343024042 its reverse (240420343024043), we get a palindrome (580840686048085).

Subtracting from 340420343024042 its reverse (240420343024043), we obtain a palindrome (99999999999999).

The spelling of 340420343024042 in words is "three hundred forty trillion, four hundred twenty billion, three hundred forty-three million, twenty-four thousand, forty-two".