345040269 has 8 divisors (see below), whose sum is σ = 525775680. Its totient is φ = 197165856.

The previous prime is 345040259. The next prime is 345040271. The reversal of 345040269 is 962040543.

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

It is not a de Polignac number, because 345040269 - 2¹² = 345036173 is a prime.

It is a super-2 number, since 2×345040269² = 238105574463184722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345040249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8215224 + ... + 8215265.

It is an arithmetic number, because the mean of its divisors is an integer number (65721960).

Almost surely, 2^345040269 is an apocalyptic number.

It is an amenable number.

345040269 is a deficient number, since it is larger than the sum of its proper divisors (180735411).

345040269 is a wasteful number, since it uses less digits than its factorization.

345040269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16430499.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 345040269 is about 18575.2595944175. The cubic root of 345040269 is about 701.3851951933.

The spelling of 345040269 in words is "three hundred forty-five million, forty thousand, two hundred sixty-nine".