384638980 has 24 divisors (see below), whose sum is σ = 881173440. Its totient is φ = 139868640.

The previous prime is 384638953. The next prime is 384638981. The reversal of 384638980 is 89836483.

It is not an unprimeable number, because it can be changed into a prime (384638981) 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 7 ways as a sum of consecutive naturals, for example, 873960 + ... + 874399.

It is an arithmetic number, because the mean of its divisors is an integer number (36715560).

Almost surely, 2^384638980 is an apocalyptic number.

It is an amenable number.

384638980 is an abundant number, since it is smaller than the sum of its proper divisors (496534460).

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

384638980 is a wasteful number, since it uses less digits than its factorization.

384638980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748379 (or 1748377 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 384638980 is about 19612.2150712254. The cubic root of 384638980 is about 727.2511747306.

The spelling of 384638980 in words is "three hundred eighty-four million, six hundred thirty-eight thousand, nine hundred eighty".