345210172 has 24 divisors (see below), whose sum is σ = 626380160. Its totient is φ = 166294080.

The previous prime is 345210157. The next prime is 345210191. The reversal of 345210172 is 271012543.

It is a happy number.

It is a congruent number.

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, 22318 + ... + 34474.

Almost surely, 2^345210172 is an apocalyptic number.

It is an amenable number.

345210172 is a deficient number, since it is larger than the sum of its proper divisors (281169988).

345210172 is a wasteful number, since it uses less digits than its factorization.

345210172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12421 (or 12419 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 345210172 is about 18579.8323996747. The cubic root of 345210172 is about 701.5003004964.

The spelling of 345210172 in words is "three hundred forty-five million, two hundred ten thousand, one hundred seventy-two".