384668499 has 16 divisors (see below), whose sum is σ = 535842720. Its totient is φ = 245145600.

The previous prime is 384668489. The next prime is 384668513. The reversal of 384668499 is 994866483.

It is not a de Polignac number, because 384668499 - 2⁴ = 384668483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384668419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13102 + ... + 30675.

It is an arithmetic number, because the mean of its divisors is an integer number (33490170).

Almost surely, 2^384668499 is an apocalyptic number.

384668499 is a deficient number, since it is larger than the sum of its proper divisors (151174221).

384668499 is a wasteful number, since it uses less digits than its factorization.

384668499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43910.

The product of its digits is 8957952, while the sum is 57.

The square root of 384668499 is about 19612.9676234883. The cubic root of 384668499 is about 727.2697784772.

The spelling of 384668499 in words is "three hundred eighty-four million, six hundred sixty-eight thousand, four hundred ninety-nine".