241566 has 32 divisors (see below), whose sum is σ = 551040. Its totient is φ = 69984.

The previous prime is 241561. The next prime is 241567. The reversal of 241566 is 665142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241561) by changing a digit.

241566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (17220).

2²⁴¹⁵⁶⁶ is an apocalyptic number.

241566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 241566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275520).

241566 is an abundant number, since it is smaller than the sum of its proper divisors (309474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

241566 is a wasteful number, since it uses less digits than its factorization.

241566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its digits is 1440, while the sum is 24.

The square root of 241566 is about 491.4936418714. The cubic root of 241566 is about 62.2795218111.

The spelling of 241566 in words is "two hundred forty-one thousand, five hundred sixty-six".