384459138 has 48 divisors (see below), whose sum is σ = 969973056. Its totient is φ = 107771040.

The previous prime is 384459077. The next prime is 384459143. The reversal of 384459138 is 831954483.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 384459093 and 384459102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22108 + ... + 35463.

It is an arithmetic number, because the mean of its divisors is an integer number (20207772).

Almost surely, 2^384459138 is an apocalyptic number.

384459138 is an abundant number, since it is smaller than the sum of its proper divisors (585513918).

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

384459138 is a wasteful number, since it uses less digits than its factorization.

384459138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57639 (or 57636 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 384459138 is about 19607.6295864646. The cubic root of 384459138 is about 727.1378124160.

The spelling of 384459138 in words is "three hundred eighty-four million, four hundred fifty-nine thousand, one hundred thirty-eight".