345217512 has 32 divisors (see below), whose sum is σ = 863513280. Its totient is φ = 115009920.

The previous prime is 345217507. The next prime is 345217541. The reversal of 345217512 is 215712543.

345217512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 345217512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68437 + ... + 73307.

It is an arithmetic number, because the mean of its divisors is an integer number (26984790).

Almost surely, 2^345217512 is an apocalyptic number.

It is an amenable number.

345217512 is an abundant number, since it is smaller than the sum of its proper divisors (518295768).

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

345217512 is a wasteful number, since it uses less digits than its factorization.

345217512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7833 (or 7829 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 345217512 is about 18580.0299246261. The cubic root of 345217512 is about 701.5052723233.

The spelling of 345217512 in words is "three hundred forty-five million, two hundred seventeen thousand, five hundred twelve".