43540041 has 8 divisors (see below), whose sum is σ = 58091904. Its totient is φ = 29007440.

The previous prime is 43540033. The next prime is 43540069. The reversal of 43540041 is 14004534.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43540041 - 2³ = 43540033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43540141) 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, 1735 + ... + 9491.

It is an arithmetic number, because the mean of its divisors is an integer number (7261488).

Almost surely, 2^43540041 is an apocalyptic number.

It is an amenable number.

43540041 is a deficient number, since it is larger than the sum of its proper divisors (14551863).

43540041 is a wasteful number, since it uses less digits than its factorization.

43540041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9631.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 43540041 is about 6598.4877813026. The cubic root of 43540041 is about 351.8003586629.

Adding to 43540041 its reverse (14004534), we get a palindrome (57544575).

The spelling of 43540041 in words is "forty-three million, five hundred forty thousand, forty-one".