313127440 has 40 divisors (see below), whose sum is σ = 729292608. Its totient is φ = 125032320.

The previous prime is 313127431. The next prime is 313127443. The reversal of 313127440 is 44721313.

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

It is not an unprimeable number, because it can be changed into a prime (313127443) 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, 47379 + ... + 53581.

Almost surely, 2^313127440 is an apocalyptic number.

It is an amenable number.

313127440 is an abundant number, since it is smaller than the sum of its proper divisors (416165168).

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

313127440 is a wasteful number, since it uses less digits than its factorization.

313127440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847 (or 6841 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 313127440 is about 17695.4073137636. The cubic root of 313127440 is about 679.0582696430.

Adding to 313127440 its reverse (44721313), we get a palindrome (357848753).

The spelling of 313127440 in words is "three hundred thirteen million, one hundred twenty-seven thousand, four hundred forty".