311362648 has 16 divisors (see below), whose sum is σ = 584073000. Its totient is φ = 155609856.

The previous prime is 311362643. The next prime is 311362657. The reversal of 311362648 is 846263113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311362643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12648 + ... + 27976.

Almost surely, 2^311362648 is an apocalyptic number.

It is an amenable number.

311362648 is a deficient number, since it is larger than the sum of its proper divisors (272710352).

311362648 is a wasteful number, since it uses less digits than its factorization.

311362648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17874 (or 17870 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 311362648 is about 17645.4710336675. The cubic root of 311362648 is about 677.7801371433.

The spelling of 311362648 in words is "three hundred eleven million, three hundred sixty-two thousand, six hundred forty-eight".