41943681 has 24 divisors (see below), whose sum is σ = 67016040. Its totient is φ = 25111296.

The previous prime is 41943647. The next prime is 41943691. The reversal of 41943681 is 18634914.

It can be written as a sum of positive squares in 4 ways, for example, as 8071281 + 33872400 = 2841^2 + 5820^2 .

It is not a de Polignac number, because 41943681 - 2²³ = 33555073 is a prime.

It is a super-2 number, since 2×41943681² = 3518544751659522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41943611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 516 + ... + 9173.

It is an arithmetic number, because the mean of its divisors is an integer number (2792335).

Almost surely, 2^41943681 is an apocalyptic number.

It is an amenable number.

41943681 is a deficient number, since it is larger than the sum of its proper divisors (25072359).

41943681 is a wasteful number, since it uses less digits than its factorization.

41943681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745 (or 9742 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 41943681 is about 6476.3941356283. The cubic root of 41943681 is about 347.4472248753.

It can be divided in two parts, 41943 and 681, that added together give a palindrome (42624).

The spelling of 41943681 in words is "forty-one million, nine hundred forty-three thousand, six hundred eighty-one".