313044520 has 32 divisors (see below), whose sum is σ = 705335400. Its totient is φ = 125042688.

The previous prime is 313044517. The next prime is 313044521. The reversal of 313044520 is 25440313.

It can be written as a sum of positive squares in 4 ways, for example, as 256704484 + 56340036 = 16022^2 + 7506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 313044491 and 313044500.

It is not an unprimeable number, because it can be changed into a prime (313044521) 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, 25672 + ... + 35848.

Almost surely, 2^313044520 is an apocalyptic number.

It is an amenable number.

313044520 is an abundant number, since it is smaller than the sum of its proper divisors (392290880).

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

313044520 is a wasteful number, since it uses less digits than its factorization.

313044520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957 (or 10953 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 313044520 is about 17693.0641778071. The cubic root of 313044520 is about 678.9983233554.

Adding to 313044520 its reverse (25440313), we get a palindrome (338484833).

The spelling of 313044520 in words is "three hundred thirteen million, forty-four thousand, five hundred twenty".