30785080320 has 220 divisors, whose sum is σ = 110317808304. Its totient is φ = 8209244160.

The previous prime is 30785080283. The next prime is 30785080327. The reversal of 30785080320 is 2308058703.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30785080327) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 377605 + ... + 451835.

Almost surely, 2^30785080320 is an apocalyptic number.

30785080320 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 30785080320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55158904152).

30785080320 is an abundant number, since it is smaller than the sum of its proper divisors (79532727984).

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

30785080320 is an equidigital number, since it uses as much as digits as its factorization.

30785080320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74268 (or 74241 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 30785080320 in words is "thirty billion, seven hundred eighty-five million, eighty thousand, three hundred twenty".