41660261 has 4 divisors (see below), whose sum is σ = 42786252. Its totient is φ = 40534272.

The previous prime is 41660243. The next prime is 41660263. The reversal of 41660261 is 16206614.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34869025 + 6791236 = 5905^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 41660261 - 2⁶ = 41660197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41660261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41660263) 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, 562940 + ... + 563013.

It is an arithmetic number, because the mean of its divisors is an integer number (10696563).

Almost surely, 2^41660261 is an apocalyptic number.

It is an amenable number.

41660261 is a deficient number, since it is larger than the sum of its proper divisors (1125991).

41660261 is a wasteful number, since it uses less digits than its factorization.

41660261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125990.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 41660261 is about 6454.4760438009. The cubic root of 41660261 is about 346.6628705000.

Adding to 41660261 its reverse (16206614), we get a palindrome (57866875).

The spelling of 41660261 in words is "forty-one million, six hundred sixty thousand, two hundred sixty-one".