384181605 has 24 divisors (see below), whose sum is σ = 687398400. Its totient is φ = 198286560.

The previous prime is 384181601. The next prime is 384181607. The reversal of 384181605 is 506181483.

384181605 is a `hidden beast` number, since 3 + 8 + 41 + 8 + 1 + 605 = 666.

It is not a de Polignac number, because 384181605 - 2² = 384181601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384181605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384181601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136305 + ... + 139094.

It is an arithmetic number, because the mean of its divisors is an integer number (28641600).

Almost surely, 2^384181605 is an apocalyptic number.

It is an amenable number.

384181605 is a deficient number, since it is larger than the sum of its proper divisors (303216795).

384181605 is a wasteful number, since it uses less digits than its factorization.

384181605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275441 (or 275438 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 384181605 is about 19600.5511402103. The cubic root of 384181605 is about 726.9628017776.

The spelling of 384181605 in words is "three hundred eighty-four million, one hundred eighty-one thousand, six hundred five".