43430216 has 8 divisors (see below), whose sum is σ = 81431670. Its totient is φ = 21715104.

The previous prime is 43430207. The next prime is 43430237. The reversal of 43430216 is 61203434.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43428100 + 2116 = 6590^2 + 46^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 43430191 and 43430200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2714381 + ... + 2714396.

Almost surely, 2^43430216 is an apocalyptic number.

It is an amenable number.

43430216 is a deficient number, since it is larger than the sum of its proper divisors (38001454).

43430216 is a wasteful number, since it uses less digits than its factorization.

43430216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428783 (or 5428779 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 43430216 is about 6590.1605443267. The cubic root of 43430216 is about 351.5043169465.

The spelling of 43430216 in words is "forty-three million, four hundred thirty thousand, two hundred sixteen".