345684318 has 32 divisors (see below), whose sum is σ = 806265600. Its totient is φ = 98766360.

The previous prime is 345684281. The next prime is 345684323. The reversal of 345684318 is 813486543.

It is a super-2 number, since 2×345684318² = 238995295422250248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 345684318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81928 + ... + 86043.

It is an arithmetic number, because the mean of its divisors is an integer number (25195800).

Almost surely, 2^345684318 is an apocalyptic number.

345684318 is an abundant number, since it is smaller than the sum of its proper divisors (460581282).

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

345684318 is a wasteful number, since it uses less digits than its factorization.

345684318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167997 (or 167983 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 345684318 is about 18592.5877166144. The cubic root of 345684318 is about 701.8213236711.

The spelling of 345684318 in words is "three hundred forty-five million, six hundred eighty-four thousand, three hundred eighteen".