313642816 has 14 divisors (see below), whose sum is σ = 622385090. Its totient is φ = 156821376.

The previous prime is 313642811. The next prime is 313642837. The reversal of 313642816 is 618246313.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 299982400 + 13660416 = 17320^2 + 3696^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313642811) 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 as a sum of consecutive naturals, namely, 2450271 + ... + 2450398.

Almost surely, 2^313642816 is an apocalyptic number.

It is an amenable number.

313642816 is a deficient number, since it is larger than the sum of its proper divisors (308742274).

313642816 is an equidigital number, since it uses as much as digits as its factorization.

313642816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900681 (or 4900671 counting only the distinct ones).

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

The square root of 313642816 is about 17709.9637492571. The cubic root of 313642816 is about 679.4306191087.

The spelling of 313642816 in words is "three hundred thirteen million, six hundred forty-two thousand, eight hundred sixteen".