384072305 has 4 divisors (see below), whose sum is σ = 460886772. Its totient is φ = 307257840.

The previous prime is 384072233. The next prime is 384072319. The reversal of 384072305 is 503270483.

It is a happy number.

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 161823841 + 222248464 = 12721^2 + 14908^2 .

It is not a de Polignac number, because 384072305 - 2⁸ = 384072049 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, 38407226 + ... + 38407235.

It is an arithmetic number, because the mean of its divisors is an integer number (115221693).

Almost surely, 2^384072305 is an apocalyptic number.

It is an amenable number.

384072305 is a deficient number, since it is larger than the sum of its proper divisors (76814467).

384072305 is an equidigital number, since it uses as much as digits as its factorization.

384072305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76814466.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 384072305 is about 19597.7627549677. The cubic root of 384072305 is about 726.8938547227.

The spelling of 384072305 in words is "three hundred eighty-four million, seventy-two thousand, three hundred five".