43430643 has 6 divisors (see below), whose sum is σ = 62733164. Its totient is φ = 28953756.

The previous prime is 43430641. The next prime is 43430677. The reversal of 43430643 is 34603434.

It is not a de Polignac number, because 43430643 - 2¹ = 43430641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43430641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2412805 + ... + 2412822.

Almost surely, 2^43430643 is an apocalyptic number.

43430643 is a deficient number, since it is larger than the sum of its proper divisors (19302521).

43430643 is a wasteful number, since it uses less digits than its factorization.

43430643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825633 (or 4825630 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 43430643 is about 6590.1929410299. The cubic root of 43430643 is about 351.5054689236.

The spelling of 43430643 in words is "forty-three million, four hundred thirty thousand, six hundred forty-three".