384243912 has 80 divisors (see below), whose sum is σ = 1159051740. Its totient is φ = 118226304.

The previous prime is 384243889. The next prime is 384243917. The reversal of 384243912 is 219342483.

It can be written as a sum of positive squares in 2 ways, for example, as 294259716 + 89984196 = 17154^2 + 9486^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (384243917) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14383 + ... + 31230.

Almost surely, 2^384243912 is an apocalyptic number.

It is an amenable number.

384243912 is an abundant number, since it is smaller than the sum of its proper divisors (774807828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384243912 is a wasteful number, since it uses less digits than its factorization.

384243912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45644 (or 45631 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 384243912 is about 19602.1404953643. The cubic root of 384243912 is about 727.0020995318.

The spelling of 384243912 in words is "three hundred eighty-four million, two hundred forty-three thousand, nine hundred twelve".