384089856 has 72 divisors (see below), whose sum is σ = 1025883600. Its totient is φ = 127574016.

The previous prime is 384089843. The next prime is 384089861. The reversal of 384089856 is 658980483.

It is a junction number, because it is equal to n+sod(n) for n = 384089799 and 384089808.

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, 267316 + ... + 268748.

Almost surely, 2^384089856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 384089856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512941800).

384089856 is an abundant number, since it is smaller than the sum of its proper divisors (641793744).

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

384089856 is a wasteful number, since it uses less digits than its factorization.

384089856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 384089856 is about 19598.2105305561. The cubic root of 384089856 is about 726.9049268738.

The spelling of 384089856 in words is "three hundred eighty-four million, eighty-nine thousand, eight hundred fifty-six".