381339 has 12 divisors (see below), whose sum is σ = 629616. Its totient is φ = 217872.

The previous prime is 381323. The next prime is 381343. The reversal of 381339 is 933183.

It is not a de Polignac number, because 381339 - 2⁴ = 381323 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (381319) 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 in 11 ways as a sum of consecutive naturals, for example, 2964 + ... + 3089.

It is an arithmetic number, because the mean of its divisors is an integer number (52468).

2³⁸¹³³⁹ is an apocalyptic number.

381339 is a deficient number, since it is larger than the sum of its proper divisors (248277).

381339 is a wasteful number, since it uses less digits than its factorization.

381339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066 (or 6063 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 381339 is about 617.5265176492. The cubic root of 381339 is about 72.5165400234.

The spelling of 381339 in words is "three hundred eighty-one thousand, three hundred thirty-nine".