316240 has 40 divisors (see below), whose sum is σ = 758880. Its totient is φ = 122496.

The previous prime is 316223. The next prime is 316241. The reversal of 316240 is 42613.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4687 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (18972).

2³¹⁶²⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379440).

316240 is an abundant number, since it is smaller than the sum of its proper divisors (442640).

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

316240 is a wasteful number, since it uses less digits than its factorization.

316240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 316240 is about 562.3522028053. The cubic root of 316240 is about 68.1300854717.

Adding to 316240 its reverse (42613), we get a palindrome (358853).

The spelling of 316240 in words is "three hundred sixteen thousand, two hundred forty".