320050000 has 120 divisors (see below), whose sum is σ = 800620632. Its totient is φ = 123840000.

The previous prime is 320049997. The next prime is 320050009. The reversal of 320050000 is 50023.

It can be written as a sum of positive squares in 12 ways, for example, as 244985104 + 75064896 = 15652^2 + 8664^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320050009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1849914 + ... + 1850086.

Almost surely, 2^320050000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400310316).

320050000 is an abundant number, since it is smaller than the sum of its proper divisors (480570632).

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

320050000 is an equidigital number, since it uses as much as digits as its factorization.

320050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 320050000 is about 17889.9413078970. The cubic root of 320050000 is about 684.0260013143.

The spelling of 320050000 in words is "three hundred twenty million, fifty thousand".