43540067 has 4 divisors (see below), whose sum is σ = 43634976. Its totient is φ = 43445160.

The previous prime is 43540033. The next prime is 43540069. The reversal of 43540067 is 76004534.

43540067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43540067 - 2¹⁰ = 43539043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43540069) 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 3 ways as a sum of consecutive naturals, for example, 46763 + ... + 47684.

It is an arithmetic number, because the mean of its divisors is an integer number (10908744).

Almost surely, 2^43540067 is an apocalyptic number.

43540067 is a deficient number, since it is larger than the sum of its proper divisors (94909).

43540067 is an equidigital number, since it uses as much as digits as its factorization.

43540067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94908.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 43540067 is about 6598.4897514507. The cubic root of 43540067 is about 351.8004286890.

The spelling of 43540067 in words is "forty-three million, five hundred forty thousand, sixty-seven".