311916928 has 32 divisors (see below), whose sum is σ = 622226520. Its totient is φ = 155750400.

The previous prime is 311916881. The next prime is 311916929. The reversal of 311916928 is 829619113.

311916928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311916929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 148848 + ... + 150928.

Almost surely, 2^311916928 is an apocalyptic number.

It is an amenable number.

311916928 is a deficient number, since it is larger than the sum of its proper divisors (310309592).

311916928 is a wasteful number, since it uses less digits than its factorization.

311916928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266 (or 3254 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The square root of 311916928 is about 17661.1700631640. The cubic root of 311916928 is about 678.1820878072.

The spelling of 311916928 in words is "three hundred eleven million, nine hundred sixteen thousand, nine hundred twenty-eight".