384782388 has 48 divisors (see below), whose sum is σ = 937273344. Its totient is φ = 122739840.

The previous prime is 384782381. The next prime is 384782389. The reversal of 384782388 is 883287483.

It is a super-2 number, since 2×384782388² = 296114972229965088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 384782388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384782381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19981 + ... + 34187.

It is an arithmetic number, because the mean of its divisors is an integer number (19526528).

Almost surely, 2^384782388 is an apocalyptic number.

It is an amenable number.

384782388 is an abundant number, since it is smaller than the sum of its proper divisors (552490956).

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

384782388 is a wasteful number, since it uses less digits than its factorization.

384782388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14312 (or 14310 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 384782388 is about 19615.8708193136. The cubic root of 384782388 is about 727.3415457738.

The spelling of 384782388 in words is "three hundred eighty-four million, seven hundred eighty-two thousand, three hundred eighty-eight".