381768 has 16 divisors (see below), whose sum is σ = 954480. Its totient is φ = 127248.

The previous prime is 381761. The next prime is 381791. The reversal of 381768 is 867183.

It is not an unprimeable number, because it can be changed into a prime (381761) by changing a digit.

381768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7930 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (59655).

2³⁸¹⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

381768 is an abundant number, since it is smaller than the sum of its proper divisors (572712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381768 is a wasteful number, since it uses less digits than its factorization.

381768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15916 (or 15912 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 381768 is about 617.8737735169. The cubic root of 381768 is about 72.5437231308.

The spelling of 381768 in words is "three hundred eighty-one thousand, seven hundred sixty-eight".