313081280 has 112 divisors (see below), whose sum is σ = 777447264. Its totient is φ = 119992320.

The previous prime is 313081273. The next prime is 313081291. The reversal of 313081280 is 82180313.

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 15 ways as a sum of consecutive naturals, for example, 839174 + ... + 839546.

Almost surely, 2^313081280 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 313081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388723632).

313081280 is an abundant number, since it is smaller than the sum of its proper divisors (464365984).

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

313081280 is a wasteful number, since it uses less digits than its factorization.

313081280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 313081280 is about 17694.1029724595. The cubic root of 313081280 is about 679.0248999814.

The spelling of 313081280 in words is "three hundred thirteen million, eighty-one thousand, two hundred eighty".