338566 has 4 divisors (see below), whose sum is σ = 507852. Its totient is φ = 169282.

The previous prime is 338563. The next prime is 338567. The reversal of 338566 is 665833.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×338566² = 229253872712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84640 + ... + 84643.

It is an arithmetic number, because the mean of its divisors is an integer number (126963).

2³³⁸⁵⁶⁶ is an apocalyptic number.

338566 is a deficient number, since it is larger than the sum of its proper divisors (169286).

338566 is a wasteful number, since it uses less digits than its factorization.

338566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169285.

The product of its digits is 12960, while the sum is 31.

The square root of 338566 is about 581.8642453356. The cubic root of 338566 is about 69.6970581848.

The spelling of 338566 in words is "three hundred thirty-eight thousand, five hundred sixty-six".