43040801 has 4 divisors (see below), whose sum is σ = 43075632. Its totient is φ = 43005972.

The previous prime is 43040791. The next prime is 43040813. The reversal of 43040801 is 10804034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43040801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43040831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15491 + ... + 18056.

It is an arithmetic number, because the mean of its divisors is an integer number (10768908).

Almost surely, 2^43040801 is an apocalyptic number.

It is an amenable number.

43040801 is a deficient number, since it is larger than the sum of its proper divisors (34831).

43040801 is a wasteful number, since it uses less digits than its factorization.

43040801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34830.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 43040801 is about 6560.5488337486. The cubic root of 43040801 is about 350.4505788738.

Adding to 43040801 its reverse (10804034), we get a palindrome (53844835).

The spelling of 43040801 in words is "forty-three million, forty thousand, eight hundred one".