345442660 has 12 divisors (see below), whose sum is σ = 725429628. Its totient is φ = 138177056.

The previous prime is 345442651. The next prime is 345442679. The reversal of 345442660 is 66244543.

It can be written as a sum of positive squares in 2 ways, for example, as 44836416 + 300606244 = 6696^2 + 17338^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8636047 + ... + 8636086.

It is an arithmetic number, because the mean of its divisors is an integer number (60452469).

Almost surely, 2^345442660 is an apocalyptic number.

It is an amenable number.

345442660 is an abundant number, since it is smaller than the sum of its proper divisors (379986968).

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

345442660 is a wasteful number, since it uses less digits than its factorization.

345442660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17272142 (or 17272140 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 345442660 is about 18586.0878078201. The cubic root of 345442660 is about 701.6577444892.

The spelling of 345442660 in words is "three hundred forty-five million, four hundred forty-two thousand, six hundred sixty".