41218661 has 8 divisors (see below), whose sum is σ = 45019200. Its totient is φ = 37427040.

The previous prime is 41218637. The next prime is 41218669. The reversal of 41218661 is 16681214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41218661 - 2¹⁴ = 41202277 is a prime.

It is a pancake number, because a pancake can be divided into 41218661 parts by 9079 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41218669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10760 + ... + 14078.

It is an arithmetic number, because the mean of its divisors is an integer number (5627400).

Almost surely, 2^41218661 is an apocalyptic number.

It is an amenable number.

41218661 is a deficient number, since it is larger than the sum of its proper divisors (3800539).

41218661 is a wasteful number, since it uses less digits than its factorization.

41218661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459.

The product of its digits is 2304, while the sum is 29.

The square root of 41218661 is about 6420.1760879278. The cubic root of 41218661 is about 345.4336380174.

Adding to 41218661 its reverse (16681214), we get a palindrome (57899875).

The spelling of 41218661 in words is "forty-one million, two hundred eighteen thousand, six hundred sixty-one".