41581140 has 24 divisors (see below), whose sum is σ = 116427360. Its totient is φ = 11088288.

The previous prime is 41581123. The next prime is 41581147. The reversal of 41581140 is 4118514.

It is a self number, because there is not a number n which added to its sum of digits gives 41581140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41581147) 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, 346450 + ... + 346569.

It is an arithmetic number, because the mean of its divisors is an integer number (4851140).

Almost surely, 2^41581140 is an apocalyptic number.

It is an amenable number.

41581140 is an abundant number, since it is smaller than the sum of its proper divisors (74846220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41581140 is a wasteful number, since it uses less digits than its factorization.

41581140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693031 (or 693029 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 41581140 is about 6448.3439734555. The cubic root of 41581140 is about 346.4432711778.

Adding to 41581140 its reverse (4118514), we get a palindrome (45699654).

The spelling of 41581140 in words is "forty-one million, five hundred eighty-one thousand, one hundred forty".