41581641 has 8 divisors (see below), whose sum is σ = 55570240. Its totient is φ = 27657072.

The previous prime is 41581619. The next prime is 41581649. The reversal of 41581641 is 14618514.

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

It is not a de Polignac number, because 41581641 - 2⁶ = 41581577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41581599 and 41581608.

It is not an unprimeable number, because it can be changed into a prime (41581649) 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, 14470 + ... + 17103.

It is an arithmetic number, because the mean of its divisors is an integer number (6946280).

Almost surely, 2^41581641 is an apocalyptic number.

It is an amenable number.

41581641 is a deficient number, since it is larger than the sum of its proper divisors (13988599).

41581641 is a wasteful number, since it uses less digits than its factorization.

41581641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32015.

The product of its digits is 3840, while the sum is 30.

The square root of 41581641 is about 6448.3828205217. The cubic root of 41581641 is about 346.4446625729. Note that the first 3 decimals are identical.

The spelling of 41581641 in words is "forty-one million, five hundred eighty-one thousand, six hundred forty-one".