381586838 has 8 divisors (see below), whose sum is σ = 572965488. Its totient is φ = 190598344.

The previous prime is 381586837. The next prime is 381586871. The reversal of 381586838 is 838685183.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381586837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95081 + ... + 99012.

It is an arithmetic number, because the mean of its divisors is an integer number (71620686).

Almost surely, 2^381586838 is an apocalyptic number.

381586838 is a deficient number, since it is larger than the sum of its proper divisors (191378650).

381586838 is a wasteful number, since it uses less digits than its factorization.

381586838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195078.

The product of its digits is 1105920, while the sum is 50.

The square root of 381586838 is about 19534.2478227343. The cubic root of 381586838 is about 725.3224648765.

The spelling of 381586838 in words is "three hundred eighty-one million, five hundred eighty-six thousand, eight hundred thirty-eight".