316223820 has 108 divisors (see below), whose sum is σ = 1054413360. Its totient is φ = 76655040.

The previous prime is 316223819. The next prime is 316223827. The reversal of 316223820 is 28322613.

316223820 is a `hidden beast` number, since 3 + 1 + 622 + 38 + 2 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (316223827) 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 35 ways as a sum of consecutive naturals, for example, 14521 + ... + 29039.

Almost surely, 2^316223820 is an apocalyptic number.

316223820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316223820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527206680).

316223820 is an abundant number, since it is smaller than the sum of its proper divisors (738189540).

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

316223820 is a wasteful number, since it uses less digits than its factorization.

316223820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14556 (or 14540 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 316223820 is about 17782.6831496262. The cubic root of 316223820 is about 681.2892352343.

The spelling of 316223820 in words is "three hundred sixteen million, two hundred twenty-three thousand, eight hundred twenty".