384386433 has 4 divisors (see below), whose sum is σ = 512515248. Its totient is φ = 256257620.

The previous prime is 384386393. The next prime is 384386441. The reversal of 384386433 is 334683483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334683483 = 3 ⋅111561161.

It is a cyclic number.

It is not a de Polignac number, because 384386433 - 2¹⁶ = 384320897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384386333) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 64064403 + ... + 64064408.

It is an arithmetic number, because the mean of its divisors is an integer number (128128812).

Almost surely, 2^384386433 is an apocalyptic number.

It is an amenable number.

384386433 is a deficient number, since it is larger than the sum of its proper divisors (128128815).

384386433 is a wasteful number, since it uses less digits than its factorization.

384386433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128128814.

The product of its digits is 497664, while the sum is 42.

The square root of 384386433 is about 19605.7755011119. The cubic root of 384386433 is about 727.0919732250.

The spelling of 384386433 in words is "three hundred eighty-four million, three hundred eighty-six thousand, four hundred thirty-three".