43240867 has 2 divisors, whose sum is σ = 43240868. Its totient is φ = 43240866.

The previous prime is 43240861. The next prime is 43240871. The reversal of 43240867 is 76804234.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43240867 is a prime.

It is not a weakly prime, because it can be changed into another prime (43240861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21620433 + 21620434.

It is an arithmetic number, because the mean of its divisors is an integer number (21620434).

Almost surely, 2^43240867 is an apocalyptic number.

43240867 is a deficient number, since it is larger than the sum of its proper divisors (1).

43240867 is an equidigital number, since it uses as much as digits as its factorization.

43240867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 43240867 is about 6575.7788131901. The cubic root of 43240867 is about 350.9927380039.

The spelling of 43240867 in words is "forty-three million, two hundred forty thousand, eight hundred sixty-seven".