381039 has 8 divisors (see below), whose sum is σ = 511920. Its totient is φ = 252096.

The previous prime is 381037. The next prime is 381047. The reversal of 381039 is 930183.

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

It is not a de Polignac number, because 381039 - 2¹ = 381037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381037) 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 7 ways as a sum of consecutive naturals, for example, 67 + ... + 875.

It is an arithmetic number, because the mean of its divisors is an integer number (63990).

2³⁸¹⁰³⁹ is an apocalyptic number.

381039 is a deficient number, since it is larger than the sum of its proper divisors (130881).

381039 is a wasteful number, since it uses less digits than its factorization.

381039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 381039 is about 617.2835653085. The cubic root of 381039 is about 72.4975187419.

The spelling of 381039 in words is "three hundred eighty-one thousand, thirty-nine".