342021345 has 16 divisors (see below), whose sum is σ = 548100672. Its totient is φ = 182122560.

The previous prime is 342021319. The next prime is 342021367. The reversal of 342021345 is 543120243.

It is not a de Polignac number, because 342021345 - 2⁸ = 342021089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8086 + ... + 27375.

It is an arithmetic number, because the mean of its divisors is an integer number (34256292).

Almost surely, 2^342021345 is an apocalyptic number.

It is an amenable number.

342021345 is a deficient number, since it is larger than the sum of its proper divisors (206079327).

342021345 is a wasteful number, since it uses less digits than its factorization.

342021345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36112.

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

The square root of 342021345 is about 18493.8191026083. The cubic root of 342021345 is about 699.3336141147. Note that the first 3 decimals are identical.

Adding to 342021345 its reverse (543120243), we get a palindrome (885141588).

The spelling of 342021345 in words is "three hundred forty-two million, twenty-one thousand, three hundred forty-five".