311328268 has 6 divisors (see below), whose sum is σ = 544824476. Its totient is φ = 155664132.

The previous prime is 311328263. The next prime is 311328289. The reversal of 311328268 is 862823113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (311328263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38916030 + ... + 38916037.

Almost surely, 2^311328268 is an apocalyptic number.

It is an amenable number.

311328268 is a deficient number, since it is larger than the sum of its proper divisors (233496208).

311328268 is a wasteful number, since it uses less digits than its factorization.

311328268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77832071 (or 77832069 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 311328268 is about 17644.4968191218. The cubic root of 311328268 is about 677.7551898790.

The spelling of 311328268 in words is "three hundred eleven million, three hundred twenty-eight thousand, two hundred sixty-eight".