338641 has 4 divisors (see below), whose sum is σ = 339892. Its totient is φ = 337392.

The previous prime is 338609. The next prime is 338659. The reversal of 338641 is 146833.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 108241 + 230400 = 329^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 338641 - 2⁵ = 338609 is a prime.

It is a super-2 number, since 2×338641² = 229355453762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30 + ... + 823.

It is an arithmetic number, because the mean of its divisors is an integer number (84973).

2³³⁸⁶⁴¹ is an apocalyptic number.

It is an amenable number.

338641 is a deficient number, since it is larger than the sum of its proper divisors (1251).

338641 is an equidigital number, since it uses as much as digits as its factorization.

338641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its digits is 1728, while the sum is 25.

The square root of 338641 is about 581.9286897894. The cubic root of 338641 is about 69.7022042946.

It can be divided in two parts, 338 and 641, that added together give a palindrome (979).

The spelling of 338641 in words is "three hundred thirty-eight thousand, six hundred forty-one".