381598 has 16 divisors (see below), whose sum is σ = 663264. Its totient is φ = 161280.

The previous prime is 381569. The next prime is 381607. The reversal of 381598 is 895183.

It is a congruent number.

It is an unprimeable number.

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, 1218 + ... + 1498.

It is an arithmetic number, because the mean of its divisors is an integer number (41454).

2³⁸¹⁵⁹⁸ is an apocalyptic number.

381598 is a deficient number, since it is larger than the sum of its proper divisors (281666).

381598 is a wasteful number, since it uses less digits than its factorization.

381598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its digits is 8640, while the sum is 34.

The square root of 381598 is about 617.7361896473. The cubic root of 381598 is about 72.5329537072.

It can be divided in two parts, 381 and 598, that added together give a palindrome (979).

The spelling of 381598 in words is "three hundred eighty-one thousand, five hundred ninety-eight".