380816609 has 8 divisors (see below), whose sum is σ = 403668360. Its totient is φ = 358014976.

The previous prime is 380816591. The next prime is 380816629. The reversal of 380816609 is 906618083.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33814225 + 347002384 = 5815^2 + 18628^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 380816609 - 2¹⁶ = 380751073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380816629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737 + ... + 27849.

It is an arithmetic number, because the mean of its divisors is an integer number (50458545).

Almost surely, 2^380816609 is an apocalyptic number.

It is an amenable number.

380816609 is a deficient number, since it is larger than the sum of its proper divisors (22851751).

380816609 is a wasteful number, since it uses less digits than its factorization.

380816609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25059.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 380816609 is about 19514.5230277350. The cubic root of 380816609 is about 724.8341175776.

The spelling of 380816609 in words is "three hundred eighty million, eight hundred sixteen thousand, six hundred nine".