320785950 has 96 divisors (see below), whose sum is σ = 822625920. Its totient is φ = 82684800.

The previous prime is 320785943. The next prime is 320785963. The reversal of 320785950 is 59587023.

It is a junction number, because it is equal to n+sod(n) for n = 320785899 and 320785908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 592680 + ... + 593220.

It is an arithmetic number, because the mean of its divisors is an integer number (8569020).

Almost surely, 2^320785950 is an apocalyptic number.

320785950 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 320785950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411312960).

320785950 is an abundant number, since it is smaller than the sum of its proper divisors (501839970).

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

320785950 is a wasteful number, since it uses less digits than its factorization.

320785950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 320785950 is about 17910.4983180257. The cubic root of 320785950 is about 684.5499023376.

The spelling of 320785950 in words is "three hundred twenty million, seven hundred eighty-five thousand, nine hundred fifty".