311345996 has 18 divisors (see below), whose sum is σ = 589992732. Its totient is φ = 143697840.

The previous prime is 311345987. The next prime is 311345999. The reversal of 311345996 is 699543113.

It is not an unprimeable number, because it can be changed into a prime (311345999) 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 5 ways as a sum of consecutive naturals, for example, 229610 + ... + 230961.

It is an arithmetic number, because the mean of its divisors is an integer number (32777374).

Almost surely, 2^311345996 is an apocalyptic number.

It is an amenable number.

311345996 is a deficient number, since it is larger than the sum of its proper divisors (278646736).

311345996 is a wasteful number, since it uses less digits than its factorization.

311345996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460601 (or 460586 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 311345996 is about 17644.9991782374. Note that the first 3 decimals coincide. The cubic root of 311345996 is about 677.7680541311.

The spelling of 311345996 in words is "three hundred eleven million, three hundred forty-five thousand, nine hundred ninety-six".