318684234 has 48 divisors (see below), whose sum is σ = 705138336. Its totient is φ = 95942880.

The previous prime is 318684217. The next prime is 318684241. The reversal of 318684234 is 432486813.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 318684192 and 318684201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116992 + ... + 119684.

It is an arithmetic number, because the mean of its divisors is an integer number (14690382).

Almost surely, 2^318684234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318684234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352569168).

318684234 is an abundant number, since it is smaller than the sum of its proper divisors (386454102).

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

318684234 is a wasteful number, since it uses less digits than its factorization.

318684234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2872 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 318684234 is about 17851.7291599441. The cubic root of 318684234 is about 683.0516207527.

The spelling of 318684234 in words is "three hundred eighteen million, six hundred eighty-four thousand, two hundred thirty-four".