384244240 has 20 divisors (see below), whose sum is σ = 893368044. Its totient is φ = 153697664.

The previous prime is 384244207. The next prime is 384244241. The reversal of 384244240 is 42442483.

It can be written as a sum of positive squares in 2 ways, for example, as 111598096 + 272646144 = 10564^2 + 16512^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (384244241) 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, 2401447 + ... + 2401606.

Almost surely, 2^384244240 is an apocalyptic number.

It is an amenable number.

384244240 is an abundant number, since it is smaller than the sum of its proper divisors (509123804).

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

384244240 is a wasteful number, since it uses less digits than its factorization.

384244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4803066 (or 4803060 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 384244240 is about 19602.1488617957. The cubic root of 384244240 is about 727.0023063940.

The spelling of 384244240 in words is "three hundred eighty-four million, two hundred forty-four thousand, two hundred forty".