384989984 has 24 divisors (see below), whose sum is σ = 758782080. Its totient is φ = 192283456.

The previous prime is 384989981. The next prime is 384989999. The reversal of 384989984 is 489989483.

It is not an unprimeable number, because it can be changed into a prime (384989981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25337 + ... + 37575.

It is an arithmetic number, because the mean of its divisors is an integer number (31615920).

Almost surely, 2^384989984 is an apocalyptic number.

It is an amenable number.

384989984 is a deficient number, since it is larger than the sum of its proper divisors (373792096).

384989984 is a wasteful number, since it uses less digits than its factorization.

384989984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232 (or 13224 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 62.

The square root of 384989984 is about 19621.1616373751. The cubic root of 384989984 is about 727.4723262305.

The spelling of 384989984 in words is "three hundred eighty-four million, nine hundred eighty-nine thousand, nine hundred eighty-four".