384921280 has 56 divisors (see below), whose sum is σ = 918331920. Its totient is φ = 153676800.

The previous prime is 384921239. The next prime is 384921281. The reversal of 384921280 is 82129483.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (384921281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264555 + ... + 266005.

Almost surely, 2^384921280 is an apocalyptic number.

It is an amenable number.

384921280 is an abundant number, since it is smaller than the sum of its proper divisors (533410640).

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

384921280 is a wasteful number, since it uses less digits than its factorization.

384921280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 384921280 is about 19619.4107964536. The cubic root of 384921280 is about 727.4290495790.

The spelling of 384921280 in words is "three hundred eighty-four million, nine hundred twenty-one thousand, two hundred eighty".