305342345 has 32 divisors (see below), whose sum is σ = 457850880. Its totient is φ = 189915840.

The previous prime is 305342333. The next prime is 305342351. The reversal of 305342345 is 543243503.

It is not a de Polignac number, because 305342345 - 2¹⁸ = 305080201 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 31 ways as a sum of consecutive naturals, for example, 331796 + ... + 332714.

It is an arithmetic number, because the mean of its divisors is an integer number (14307840).

Almost surely, 2^305342345 is an apocalyptic number.

305342345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

305342345 is a deficient number, since it is larger than the sum of its proper divisors (152508535).

305342345 is a wasteful number, since it uses less digits than its factorization.

305342345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 305342345 is about 17474.0477566018. The cubic root of 305342345 is about 673.3833060701.

Adding to 305342345 its reverse (543243503), we get a palindrome (848585848).

The spelling of 305342345 in words is "three hundred five million, three hundred forty-two thousand, three hundred forty-five".