313326520 has 32 divisors (see below), whose sum is σ = 759215520. Its totient is φ = 115689600.

The previous prime is 313326491. The next prime is 313326529. The reversal of 313326520 is 25623313.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313326529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300756 + ... + 301795.

It is an arithmetic number, because the mean of its divisors is an integer number (23725485).

Almost surely, 2^313326520 is an apocalyptic number.

It is an amenable number.

313326520 is an abundant number, since it is smaller than the sum of its proper divisors (445889000).

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

313326520 is a wasteful number, since it uses less digits than its factorization.

313326520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602575 (or 602571 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 313326520 is about 17701.0316083555. The cubic root of 313326520 is about 679.2021495925.

Adding to 313326520 its reverse (25623313), we get a palindrome (338949833).

The spelling of 313326520 in words is "three hundred thirteen million, three hundred twenty-six thousand, five hundred twenty".