41561856 has 144 divisors (see below), whose sum is σ = 140627200. Its totient is φ = 11860992.

The previous prime is 41561837. The next prime is 41561857. The reversal of 41561856 is 65816514.

41561856 is a `hidden beast` number, since 41 + 561 + 8 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 41561856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41561857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47955 + ... + 48813.

Almost surely, 2^41561856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41561856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70313600).

41561856 is an abundant number, since it is smaller than the sum of its proper divisors (99065344).

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

41561856 is an equidigital number, since it uses as much as digits as its factorization.

41561856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 871 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 41561856 is about 6446.8485324226. The cubic root of 41561856 is about 346.3897064680.

The spelling of 41561856 in words is "forty-one million, five hundred sixty-one thousand, eight hundred fifty-six".