41660821 has 8 divisors (see below), whose sum is σ = 42257600. Its totient is φ = 41067648.

The previous prime is 41660813. The next prime is 41660831. The reversal of 41660821 is 12806614.

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 41660821 - 2³ = 41660813 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 41660821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41660831) 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, 29080 + ... + 30478.

It is an arithmetic number, because the mean of its divisors is an integer number (5282200).

Almost surely, 2^41660821 is an apocalyptic number.

It is an amenable number.

41660821 is a deficient number, since it is larger than the sum of its proper divisors (596779).

41660821 is a wasteful number, since it uses less digits than its factorization.

41660821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 41660821 is about 6454.5194244033. The cubic root of 41660821 is about 346.6644237815.

The spelling of 41660821 in words is "forty-one million, six hundred sixty thousand, eight hundred twenty-one".