43412219 has 2 divisors, whose sum is σ = 43412220. Its totient is φ = 43412218.

The previous prime is 43412209. The next prime is 43412233. The reversal of 43412219 is 91221434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43412219 - 2¹⁶ = 43346683 is a prime.

It is a super-2 number, since 2×43412219² = 3769241517007922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43412209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21706109 + 21706110.

It is an arithmetic number, because the mean of its divisors is an integer number (21706110).

Almost surely, 2^43412219 is an apocalyptic number.

43412219 is a deficient number, since it is larger than the sum of its proper divisors (1).

43412219 is an equidigital number, since it uses as much as digits as its factorization.

43412219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 43412219 is about 6588.7949581088. The cubic root of 43412219 is about 351.4557570744.

The spelling of 43412219 in words is "forty-three million, four hundred twelve thousand, two hundred nineteen".