380656389 has 8 divisors (see below), whose sum is σ = 507687040. Its totient is φ = 253698336.

The previous prime is 380656357. The next prime is 380656399. The reversal of 380656389 is 983656083.

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

It is not a de Polignac number, because 380656389 - 2⁵ = 380656357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380656399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4432 + ... + 27945.

It is an arithmetic number, because the mean of its divisors is an integer number (63460880).

Almost surely, 2^380656389 is an apocalyptic number.

It is an amenable number.

380656389 is a deficient number, since it is larger than the sum of its proper divisors (127030651).

380656389 is a wasteful number, since it uses less digits than its factorization.

380656389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36299.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 380656389 is about 19510.4174481224. The cubic root of 380656389 is about 724.7324507821.

The spelling of 380656389 in words is "three hundred eighty million, six hundred fifty-six thousand, three hundred eighty-nine".