389280304 has 80 divisors (see below), whose sum is σ = 890568000. Its totient is φ = 164752896.

The previous prime is 389280197. The next prime is 389280319. The reversal of 389280304 is 403082983.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488034 + ... + 488830.

It is an arithmetic number, because the mean of its divisors is an integer number (11132100).

Almost surely, 2^389280304 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 389280304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445284000).

389280304 is an abundant number, since it is smaller than the sum of its proper divisors (501287696).

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

389280304 is an equidigital number, since it uses as much as digits as its factorization.

389280304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 389280304 is about 19730.1876321539. The cubic root of 389280304 is about 730.1646616733.

The spelling of 389280304 in words is "three hundred eighty-nine million, two hundred eighty thousand, three hundred four".