384945305 has 4 divisors (see below), whose sum is σ = 461934372. Its totient is φ = 307956240.

The previous prime is 384945283. The next prime is 384945311. The reversal of 384945305 is 503549483.

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 274863241 + 110082064 = 16579^2 + 10492^2 .

It is not a de Polignac number, because 384945305 - 2¹⁰ = 384944281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38494526 + ... + 38494535.

It is an arithmetic number, because the mean of its divisors is an integer number (115483593).

Almost surely, 2^384945305 is an apocalyptic number.

It is an amenable number.

384945305 is a deficient number, since it is larger than the sum of its proper divisors (76989067).

384945305 is an equidigital number, since it uses as much as digits as its factorization.

384945305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76989066.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 384945305 is about 19620.0230631873. The cubic root of 384945305 is about 727.4441835126. Note that the first 3 decimals are identical.

The spelling of 384945305 in words is "three hundred eighty-four million, nine hundred forty-five thousand, three hundred five".