345679218 has 16 divisors (see below), whose sum is σ = 768176160. Its totient is φ = 115226388.

The previous prime is 345679189. The next prime is 345679231. The reversal of 345679218 is 812976543.

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, 3200680 + ... + 3200787.

It is an arithmetic number, because the mean of its divisors is an integer number (48011010).

Almost surely, 2^345679218 is an apocalyptic number.

345679218 is an abundant number, since it is smaller than the sum of its proper divisors (422496942).

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

345679218 is a wasteful number, since it uses less digits than its factorization.

345679218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401478 (or 6401472 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 345679218 is about 18592.4505646781. The cubic root of 345679218 is about 701.8178722500.

The spelling of 345679218 in words is "three hundred forty-five million, six hundred seventy-nine thousand, two hundred eighteen".