41243540 has 96 divisors (see below), whose sum is σ = 98685216. Its totient is φ = 14376960.

The previous prime is 41243519. The next prime is 41243549. The reversal of 41243540 is 4534214.

41243540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 20921476 + 20322064 = 4574^2 + 4508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41243549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564944 + ... + 565016.

It is an arithmetic number, because the mean of its divisors is an integer number (1027971).

Almost surely, 2^41243540 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 41243540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49342608).

41243540 is an abundant number, since it is smaller than the sum of its proper divisors (57441676).

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

41243540 is a wasteful number, since it uses less digits than its factorization.

41243540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 41243540 is about 6422.1133593234. The cubic root of 41243540 is about 345.5031236563.

Adding to 41243540 its reverse (4534214), we get a palindrome (45777754).

The spelling of 41243540 in words is "forty-one million, two hundred forty-three thousand, five hundred forty".