41406641 has 4 divisors (see below), whose sum is σ = 41488500. Its totient is φ = 41324784.

The previous prime is 41406637. The next prime is 41406661. The reversal of 41406641 is 14660414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14660414 = 2 ⋅7330207.

It can be written as a sum of positive squares in 2 ways, for example, as 13359025 + 28047616 = 3655^2 + 5296^2 .

It is a cyclic number.

It is not a de Polignac number, because 41406641 - 2² = 41406637 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 41406641.

It is not an unprimeable number, because it can be changed into a prime (41406661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40166 + ... + 41183.

It is an arithmetic number, because the mean of its divisors is an integer number (10372125).

Almost surely, 2^41406641 is an apocalyptic number.

It is an amenable number.

41406641 is a deficient number, since it is larger than the sum of its proper divisors (81859).

41406641 is an equidigital number, since it uses as much as digits as its factorization.

41406641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81858.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 41406641 is about 6434.7992198669. The cubic root of 41406641 is about 345.9579648668.

The spelling of 41406641 in words is "forty-one million, four hundred six thousand, six hundred forty-one".