345028266 has 48 divisors (see below), whose sum is σ = 822002688. Its totient is φ = 103723200.

The previous prime is 345028253. The next prime is 345028289. The reversal of 345028266 is 662820543.

It is a self number, because there is not a number n which added to its sum of digits gives 345028266.

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 23 ways as a sum of consecutive naturals, for example, 18286 + ... + 32006.

It is an arithmetic number, because the mean of its divisors is an integer number (17125056).

Almost surely, 2^345028266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345028266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411001344).

345028266 is an abundant number, since it is smaller than the sum of its proper divisors (476974422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345028266 is a wasteful number, since it uses less digits than its factorization.

345028266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13867 (or 13864 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 345028266 is about 18574.9365005644. The cubic root of 345028266 is about 701.3770620130.

The spelling of 345028266 in words is "three hundred forty-five million, twenty-eight thousand, two hundred sixty-six".