315340 has 12 divisors (see below), whose sum is σ = 662256. Its totient is φ = 126128.

The previous prime is 315313. The next prime is 315349. The reversal of 315340 is 43513.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (315349) by changing a digit.

315340 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7864 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (55188).

2³¹⁵³⁴⁰ is an apocalyptic number.

It is an amenable number.

315340 is an abundant number, since it is smaller than the sum of its proper divisors (346916).

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

315340 is a wasteful number, since it uses less digits than its factorization.

315340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15776 (or 15774 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 315340 is about 561.5514224005. The cubic root of 315340 is about 68.0653926885.

Adding to 315340 its reverse (43513), we get a palindrome (358853).

The spelling of 315340 in words is "three hundred fifteen thousand, three hundred forty".