381308 has 6 divisors (see below), whose sum is σ = 667296. Its totient is φ = 190652.

The previous prime is 381301. The next prime is 381319. The reversal of 381308 is 803183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47660 + ... + 47667.

It is an arithmetic number, because the mean of its divisors is an integer number (111216).

2³⁸¹³⁰⁸ is an apocalyptic number.

It is an amenable number.

381308 is a deficient number, since it is larger than the sum of its proper divisors (285988).

381308 is a wasteful number, since it uses less digits than its factorization.

381308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95331 (or 95329 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 381308 is about 617.5014170024. The cubic root of 381308 is about 72.5145749532.

Subtracting 381308 from its reverse (803183), we obtain a cube (421875 = 75³).

The spelling of 381308 in words is "three hundred eighty-one thousand, three hundred eight".