345018856 has 32 divisors (see below), whose sum is σ = 796199040. Its totient is φ = 136490688.

The previous prime is 345018841. The next prime is 345018907. The reversal of 345018856 is 658810543.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236236 + ... + 237691.

It is an arithmetic number, because the mean of its divisors is an integer number (24881220).

Almost surely, 2^345018856 is an apocalyptic number.

It is an amenable number.

345018856 is an abundant number, since it is smaller than the sum of its proper divisors (451180184).

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

345018856 is a wasteful number, since it uses less digits than its factorization.

345018856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473953 (or 473949 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 345018856 is about 18574.6832005286. The cubic root of 345018856 is about 701.3706857063.

The spelling of 345018856 in words is "three hundred forty-five million, eighteen thousand, eight hundred fifty-six".