384402403 has 12 divisors (see below), whose sum is σ = 487813752. Its totient is φ = 299533920.

The previous prime is 384402401. The next prime is 384402461. The reversal of 384402403 is 304204483.

It is not a de Polignac number, because 384402403 - 2¹ = 384402401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384402401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356050 + ... + 357127.

It is an arithmetic number, because the mean of its divisors is an integer number (40651146).

Almost surely, 2^384402403 is an apocalyptic number.

384402403 is a deficient number, since it is larger than the sum of its proper divisors (103411349).

384402403 is a wasteful number, since it uses less digits than its factorization.

384402403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713202 (or 713195 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 384402403 is about 19606.1827748290. The cubic root of 384402403 is about 727.1020425173.

Adding to 384402403 its reverse (304204483), we get a palindrome (688606886).

The spelling of 384402403 in words is "three hundred eighty-four million, four hundred two thousand, four hundred three".