320481860 has 12 divisors (see below), whose sum is σ = 673011948. Its totient is φ = 128192736.

The previous prime is 320481857. The next prime is 320481869. The reversal of 320481860 is 68184023.

It can be written as a sum of positive squares in 2 ways, for example, as 115648516 + 204833344 = 10754^2 + 14312^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (320481869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8012027 + ... + 8012066.

It is an arithmetic number, because the mean of its divisors is an integer number (56084329).

Almost surely, 2^320481860 is an apocalyptic number.

It is an amenable number.

320481860 is an abundant number, since it is smaller than the sum of its proper divisors (352530088).

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

320481860 is a wasteful number, since it uses less digits than its factorization.

320481860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16024102 (or 16024100 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 320481860 is about 17902.0071500377. The cubic root of 320481860 is about 684.3335269100. Note that the first 3 decimals are identical.

The spelling of 320481860 in words is "three hundred twenty million, four hundred eighty-one thousand, eight hundred sixty".