384235816 has 16 divisors (see below), whose sum is σ = 721273140. Its totient is φ = 191896320.

The previous prime is 384235811. The next prime is 384235843. The reversal of 384235816 is 618532483.

It can be written as a sum of positive squares in 2 ways, for example, as 382358916 + 1876900 = 19554^2 + 1370^2 .

It is not an unprimeable number, because it can be changed into a prime (384235811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20211 + ... + 34306.

Almost surely, 2^384235816 is an apocalyptic number.

It is an amenable number.

384235816 is a deficient number, since it is larger than the sum of its proper divisors (337037324).

384235816 is a wasteful number, since it uses less digits than its factorization.

384235816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55404 (or 55400 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 384235816 is about 19601.9339862168. The cubic root of 384235816 is about 726.9969935300.

The spelling of 384235816 in words is "three hundred eighty-four million, two hundred thirty-five thousand, eight hundred sixteen".