384649328 has 20 divisors (see below), whose sum is σ = 851723760. Its totient is φ = 164849664.

The previous prime is 384649313. The next prime is 384649351. The reversal of 384649328 is 823946483.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717073 + ... + 1717296.

It is an arithmetic number, because the mean of its divisors is an integer number (42586188).

Almost surely, 2^384649328 is an apocalyptic number.

It is an amenable number.

384649328 is an abundant number, since it is smaller than the sum of its proper divisors (467074432).

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

384649328 is a wasteful number, since it uses less digits than its factorization.

384649328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434384 (or 3434378 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The square root of 384649328 is about 19612.4788846285. The cubic root of 384649328 is about 727.2576964545.

The spelling of 384649328 in words is "three hundred eighty-four million, six hundred forty-nine thousand, three hundred twenty-eight".