320788483290 has 144 divisors (see below), whose sum is σ = 946339849728. Its totient is φ = 75258216000.

The previous prime is 320788483289. The next prime is 320788483291. The reversal of 320788483290 is 92384887023.

320788483290 is a `hidden beast` number, since 3 + 2 + 0 + 78 + 8 + 483 + 2 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (320788483289) and next prime (320788483291).

It is a super-2 number, since 2×320788483290² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320788483291) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 137526 + ... + 812705.

It is an arithmetic number, because the mean of its divisors is an integer number (6571804512).

Almost surely, 2^320788483290 is an apocalyptic number.

320788483290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320788483290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473169924864).

320788483290 is an abundant number, since it is smaller than the sum of its proper divisors (625551366438).

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

320788483290 is a wasteful number, since it uses less digits than its factorization.

320788483290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950297 (or 950283 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 320788483290 in words is "three hundred twenty billion, seven hundred eighty-eight million, four hundred eighty-three thousand, two hundred ninety".