380289009 has 16 divisors (see below), whose sum is σ = 535046400. Its totient is φ = 239594256.

The previous prime is 380288999. The next prime is 380289029. The reversal of 380289009 is 900982083.

It is not a de Polignac number, because 380289009 - 2⁹ = 380288497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380289029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15922 + ... + 31844.

It is an arithmetic number, because the mean of its divisors is an integer number (33440400).

Almost surely, 2^380289009 is an apocalyptic number.

It is an amenable number.

380289009 is a deficient number, since it is larger than the sum of its proper divisors (154757391).

380289009 is a wasteful number, since it uses less digits than its factorization.

380289009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16364.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 380289009 is about 19501.0002051177. Note that the first 3 decimals coincide. The cubic root of 380289009 is about 724.4992238993.

The spelling of 380289009 in words is "three hundred eighty million, two hundred eighty-nine thousand, nine".