345240345 has 16 divisors (see below), whose sum is σ = 558593280. Its totient is φ = 182058624.

The previous prime is 345240341. The next prime is 345240407. The reversal of 345240345 is 543042543.

It is not a de Polignac number, because 345240345 - 2² = 345240341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345240341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127969 + ... + 130638.

It is an arithmetic number, because the mean of its divisors is an integer number (34912080).

Almost surely, 2^345240345 is an apocalyptic number.

It is an amenable number.

345240345 is a deficient number, since it is larger than the sum of its proper divisors (213352935).

345240345 is a wasteful number, since it uses less digits than its factorization.

345240345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258704.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 345240345 is about 18580.6443644993. The cubic root of 345240345 is about 701.5207380478.

Adding to 345240345 its reverse (543042543), we get a palindrome (888282888).

The spelling of 345240345 in words is "three hundred forty-five million, two hundred forty thousand, three hundred forty-five".