384099305 has 4 divisors (see below), whose sum is σ = 460919172. Its totient is φ = 307279440.

The previous prime is 384099301. The next prime is 384099311. The reversal of 384099305 is 503990483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102799321 + 281299984 = 10139^2 + 16772^2 .

It is not a de Polignac number, because 384099305 - 2² = 384099301 is a prime.

It is a super-2 number, since 2×384099305² = 295064552202966050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384099301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38409926 + ... + 38409935.

It is an arithmetic number, because the mean of its divisors is an integer number (115229793).

Almost surely, 2^384099305 is an apocalyptic number.

It is an amenable number.

384099305 is a deficient number, since it is larger than the sum of its proper divisors (76819867).

384099305 is an equidigital number, since it uses as much as digits as its factorization.

384099305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76819866.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 384099305 is about 19598.4515970012. The cubic root of 384099305 is about 726.9108876910.

The spelling of 384099305 in words is "three hundred eighty-four million, ninety-nine thousand, three hundred five".