41640810 has 64 divisors (see below), whose sum is σ = 107930880. Its totient is φ = 10250240.

The previous prime is 41640779. The next prime is 41640811. The reversal of 41640810 is 1804614.

It is a super-2 number, since 2×41640810² = 3467914114912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41640811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18970 + ... + 21050.

It is an arithmetic number, because the mean of its divisors is an integer number (1686420).

Almost surely, 2^41640810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41640810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53965440).

41640810 is an abundant number, since it is smaller than the sum of its proper divisors (66290070).

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

41640810 is a wasteful number, since it uses less digits than its factorization.

41640810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 41640810 is about 6452.9690840729. The cubic root of 41640810 is about 346.6089102909.

The spelling of 41640810 in words is "forty-one million, six hundred forty thousand, eight hundred ten".