41661813 has 8 divisors (see below), whose sum is σ = 58472800. Its totient is φ = 26312688.

The previous prime is 41661811. The next prime is 41661821. The reversal of 41661813 is 31816614.

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

It is not a de Polignac number, because 41661813 - 2¹ = 41661811 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41661811) 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 7 ways as a sum of consecutive naturals, for example, 365398 + ... + 365511.

It is an arithmetic number, because the mean of its divisors is an integer number (7309100).

Almost surely, 2^41661813 is an apocalyptic number.

It is an amenable number.

41661813 is a deficient number, since it is larger than the sum of its proper divisors (16810987).

41661813 is a wasteful number, since it uses less digits than its factorization.

41661813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730931.

The product of its digits is 3456, while the sum is 30.

The square root of 41661813 is about 6454.5962693262. The cubic root of 41661813 is about 346.6671752746.

The spelling of 41661813 in words is "forty-one million, six hundred sixty-one thousand, eight hundred thirteen".