320126820 has 96 divisors (see below), whose sum is σ = 1016158080. Its totient is φ = 74649600.

The previous prime is 320126803. The next prime is 320126843. The reversal of 320126820 is 28621023.

320126820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4020 + ... + 25620.

It is an arithmetic number, because the mean of its divisors is an integer number (10584980).

Almost surely, 2^320126820 is an apocalyptic number.

320126820 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 320126820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508079040).

320126820 is an abundant number, since it is smaller than the sum of its proper divisors (696031260).

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

320126820 is a wasteful number, since it uses less digits than its factorization.

320126820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21645 (or 21643 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 320126820 is about 17892.0881956243. The cubic root of 320126820 is about 684.0807247156.

Adding to 320126820 its reverse (28621023), we get a palindrome (348747843).

The spelling of 320126820 in words is "three hundred twenty million, one hundred twenty-six thousand, eight hundred twenty".