384427838 has 16 divisors (see below), whose sum is σ = 596230656. Its totient is φ = 185704920.

The previous prime is 384427831. The next prime is 384427859. The reversal of 384427838 is 838724483.

It is a junction number, because it is equal to n+sod(n) for n = 384427792 and 384427801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384427831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35045 + ... + 44687.

It is an arithmetic number, because the mean of its divisors is an integer number (37264416).

Almost surely, 2^384427838 is an apocalyptic number.

384427838 is a deficient number, since it is larger than the sum of its proper divisors (211802818).

384427838 is a wasteful number, since it uses less digits than its factorization.

384427838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10319.

The product of its digits is 1032192, while the sum is 47.

The square root of 384427838 is about 19606.8314115259. The cubic root of 384427838 is about 727.1180790391.

The spelling of 384427838 in words is "three hundred eighty-four million, four hundred twenty-seven thousand, eight hundred thirty-eight".