311680252 has 24 divisors (see below), whose sum is σ = 587877696. Its totient is φ = 143734848.

The previous prime is 311680249. The next prime is 311680253. The reversal of 311680252 is 252086113.

It is a self number, because there is not a number n which added to its sum of digits gives 311680252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311680253) 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, 121293 + ... + 123835.

It is an arithmetic number, because the mean of its divisors is an integer number (24494904).

Almost surely, 2^311680252 is an apocalyptic number.

It is an amenable number.

311680252 is a deficient number, since it is larger than the sum of its proper divisors (276197444).

311680252 is a wasteful number, since it uses less digits than its factorization.

311680252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917 (or 4915 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 311680252 is about 17654.4683295759. The cubic root of 311680252 is about 678.0105143063.

The spelling of 311680252 in words is "three hundred eleven million, six hundred eighty thousand, two hundred fifty-two".