380105609 has 8 divisors (see below), whose sum is σ = 410805192. Its totient is φ = 349614720.

The previous prime is 380105569. The next prime is 380105617. The reversal of 380105609 is 906501083.

It can be written as a sum of positive squares in 4 ways, for example, as 67699984 + 312405625 = 8228^2 + 17675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-380105609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380105809) 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 7 ways as a sum of consecutive naturals, for example, 48374 + ... + 55679.

It is an arithmetic number, because the mean of its divisors is an integer number (51350649).

Almost surely, 2^380105609 is an apocalyptic number.

It is an amenable number.

380105609 is a deficient number, since it is larger than the sum of its proper divisors (30699583).

380105609 is a wasteful number, since it uses less digits than its factorization.

380105609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104347.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 380105609 is about 19496.2973151314. The cubic root of 380105609 is about 724.3827383491.

The spelling of 380105609 in words is "three hundred eighty million, one hundred five thousand, six hundred nine".