384920403 has 8 divisors (see below), whose sum is σ = 586545408. Its totient is φ = 219954504.

The previous prime is 384920401. The next prime is 384920429. The reversal of 384920403 is 304029483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 384920403 - 2¹ = 384920401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384920401) 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 7 ways as a sum of consecutive naturals, for example, 9164751 + ... + 9164792.

It is an arithmetic number, because the mean of its divisors is an integer number (73318176).

Almost surely, 2^384920403 is an apocalyptic number.

384920403 is a deficient number, since it is larger than the sum of its proper divisors (201625005).

384920403 is a wasteful number, since it uses less digits than its factorization.

384920403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18329553.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 384920403 is about 19619.3884461264. The cubic root of 384920403 is about 727.4284971234.

Adding to 384920403 its reverse (304029483), we get a palindrome (688949886).

The spelling of 384920403 in words is "three hundred eighty-four million, nine hundred twenty thousand, four hundred three".