380906 has 8 divisors (see below), whose sum is σ = 574560. Its totient is φ = 189388.

The previous prime is 380881. The next prime is 380909. The reversal of 380906 is 609083.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (380909) 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 3 ways as a sum of consecutive naturals, for example, 35 + ... + 873.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2³⁸⁰⁹⁰⁶ is an apocalyptic number.

380906 is a deficient number, since it is larger than the sum of its proper divisors (193654).

380906 is a wasteful number, since it uses less digits than its factorization.

380906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 380906 is about 617.1758258390. The cubic root of 380906 is about 72.4890827794.

Adding to 380906 its reverse (609083), we get a palindrome (989989).

The spelling of 380906 in words is "three hundred eighty thousand, nine hundred six".