313040240 has 40 divisors (see below), whose sum is σ = 728599200. Its totient is φ = 125081856.

The previous prime is 313040237. The next prime is 313040251. The reversal of 313040240 is 42040313.

313040240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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, 110522 + ... + 113318.

It is an arithmetic number, because the mean of its divisors is an integer number (18214980).

Almost surely, 2^313040240 is an apocalyptic number.

It is an amenable number.

313040240 is an abundant number, since it is smaller than the sum of its proper divisors (415558960).

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

313040240 is a wasteful number, since it uses less digits than its factorization.

313040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209 (or 4203 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 313040240 is about 17692.9432260435. The cubic root of 313040240 is about 678.9952288796.

Adding to 313040240 its reverse (42040313), we get a palindrome (355080553).

The spelling of 313040240 in words is "three hundred thirteen million, forty thousand, two hundred forty".