318430 has 16 divisors (see below), whose sum is σ = 655200. Its totient is φ = 109152.

The previous prime is 318419. The next prime is 318431. The reversal of 318430 is 34813.

It is a junction number, because it is equal to n+sod(n) for n = 318398 and 318407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2205 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2³¹⁸⁴³⁰ is an apocalyptic number.

318430 is an abundant number, since it is smaller than the sum of its proper divisors (336770).

It is a weird number, because it is abundant, but not a pseudoperfect number.

318430 is a wasteful number, since it uses less digits than its factorization.

318430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 318430 is about 564.2960216057. The cubic root of 318430 is about 68.2869935011.

The spelling of 318430 in words is "three hundred eighteen thousand, four hundred thirty".