384621664 has 48 divisors (see below), whose sum is σ = 895255200. Its totient is φ = 159151104.

The previous prime is 384621641. The next prime is 384621733. The reversal of 384621664 is 466126483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23109 + ... + 36100.

It is an arithmetic number, because the mean of its divisors is an integer number (18651150).

Almost surely, 2^384621664 is an apocalyptic number.

It is an amenable number.

384621664 is an abundant number, since it is smaller than the sum of its proper divisors (510633536).

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

384621664 is a wasteful number, since it uses less digits than its factorization.

384621664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59255 (or 59247 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 384621664 is about 19611.7736066884. The cubic root of 384621664 is about 727.2402612325.

The spelling of 384621664 in words is "three hundred eighty-four million, six hundred twenty-one thousand, six hundred sixty-four".