320481604 has 9 divisors (see below), whose sum is σ = 560905471. Its totient is φ = 160222900.

The previous prime is 320481593. The next prime is 320481631. The reversal of 320481604 is 406184023.

The square root of 320481604 is 17902.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 31329 + ... + 40279.

Almost surely, 2^320481604 is an apocalyptic number.

320481604 is the 17902-nd square number.

It is an amenable number.

320481604 is a deficient number, since it is larger than the sum of its proper divisors (240423867).

320481604 is an frugal number, since it uses more digits than its factorization.

320481604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17906 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The cubic root of 320481604 is about 684.3333446954. Note that the first 4 decimals are identical.

The spelling of 320481604 in words is "three hundred twenty million, four hundred eighty-one thousand, six hundred four".