316668220 has 24 divisors (see below), whose sum is σ = 725458608. Its totient is φ = 115152000.

The previous prime is 316668161. The next prime is 316668223. The reversal of 316668220 is 22866613.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316668223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719481 + ... + 719920.

It is an arithmetic number, because the mean of its divisors is an integer number (30227442).

Almost surely, 2^316668220 is an apocalyptic number.

It is an amenable number.

316668220 is an abundant number, since it is smaller than the sum of its proper divisors (408790388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316668220 is a wasteful number, since it uses less digits than its factorization.

316668220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439421 (or 1439419 counting only the distinct ones).

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

The square root of 316668220 is about 17795.1740648975. The cubic root of 316668220 is about 681.6082320957.

The spelling of 316668220 in words is "three hundred sixteen million, six hundred sixty-eight thousand, two hundred twenty".