313340240 has 80 divisors (see below), whose sum is σ = 754023168. Its totient is φ = 121026048.

The previous prime is 313340239. The next prime is 313340249. The reversal of 313340240 is 42043313.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313340249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283529 + ... + 284631.

Almost surely, 2^313340240 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 313340240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377011584).

313340240 is an abundant number, since it is smaller than the sum of its proper divisors (440682928).

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

313340240 is a wasteful number, since it uses less digits than its factorization.

313340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 313340240 is about 17701.4191521471. The cubic root of 313340240 is about 679.2120631245.

Adding to 313340240 its reverse (42043313), we get a palindrome (355383553).

The spelling of 313340240 in words is "three hundred thirteen million, three hundred forty thousand, two hundred forty".