345431308 has 12 divisors (see below), whose sum is σ = 605134152. Its totient is φ = 172535840.

The previous prime is 345431291. The next prime is 345431311. The reversal of 345431308 is 803134543.

It is a self number, because there is not a number n which added to its sum of digits gives 345431308.

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, 40585 + ... + 48352.

It is an arithmetic number, because the mean of its divisors is an integer number (50427846).

Almost surely, 2^345431308 is an apocalyptic number.

It is an amenable number.

345431308 is a deficient number, since it is larger than the sum of its proper divisors (259702844).

345431308 is a wasteful number, since it uses less digits than its factorization.

345431308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89912 (or 89910 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 345431308 is about 18585.7824155993. The cubic root of 345431308 is about 701.6500584032.

The spelling of 345431308 in words is "three hundred forty-five million, four hundred thirty-one thousand, three hundred eight".