384409172 has 12 divisors (see below), whose sum is σ = 768818400. Its totient is φ = 164746776.

The previous prime is 384409093. The next prime is 384409187. The reversal of 384409172 is 271904483.

384409172 is an admirable number.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6864422 + ... + 6864477.

It is an arithmetic number, because the mean of its divisors is an integer number (64068200).

Almost surely, 2^384409172 is an apocalyptic number.

It is an amenable number.

384409172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

384409172 is a wasteful number, since it uses less digits than its factorization.

384409172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728910 (or 13728908 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 384409172 is about 19606.3553981866. The cubic root of 384409172 is about 727.1063103755.

The spelling of 384409172 in words is "three hundred eighty-four million, four hundred nine thousand, one hundred seventy-two".