41666641 has 8 divisors (see below), whose sum is σ = 42522984. Its totient is φ = 40819200.

The previous prime is 41666633. The next prime is 41666657. The reversal of 41666641 is 14666614.

41666641 = T₃₈₃ + T₃₈₄ + ... + T₆₇₃.

41666641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 34398225 = 2696^2 + 5865^2 .

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 41666641 - 2³ = 41666633 is a prime.

It is a super-2 number, since 2×41666641² = 3472217944445762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41666597 and 41666606.

It is not an unprimeable number, because it can be changed into a prime (41666621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7671 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (5315373).

Almost surely, 2^41666641 is an apocalyptic number.

It is an amenable number.

41666641 is a deficient number, since it is larger than the sum of its proper divisors (856343).

41666641 is a wasteful number, since it uses less digits than its factorization.

41666641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451.

The product of its digits is 20736, while the sum is 34.

The square root of 41666641 is about 6454.9702555473. The cubic root of 41666641 is about 346.6805659902.

The spelling of 41666641 in words is "forty-one million, six hundred sixty-six thousand, six hundred forty-one".