313066520 has 64 divisors (see below), whose sum is σ = 783095040. Its totient is φ = 111859200.

The previous prime is 313066511. The next prime is 313066541. The reversal of 313066520 is 25660313.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 313066520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6410 + ... + 25830.

It is an arithmetic number, because the mean of its divisors is an integer number (12235860).

Almost surely, 2^313066520 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 313066520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391547520).

313066520 is an abundant number, since it is smaller than the sum of its proper divisors (470028520).

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

313066520 is a wasteful number, since it uses less digits than its factorization.

313066520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19476 (or 19472 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 313066520 is about 17693.6858794317. The cubic root of 313066520 is about 679.0142290943.

The spelling of 313066520 in words is "three hundred thirteen million, sixty-six thousand, five hundred twenty".