340000043 has 4 divisors (see below), whose sum is σ = 344788848. Its totient is φ = 335211240.

The previous prime is 340000039. The next prime is 340000061.

340000043 is nontrivially palindromic in base 10.

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 340000043 - 2² = 340000039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 339999982 and 340000027.

It is not an unprimeable number, because it can be changed into a prime (340000543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2394296 + ... + 2394437.

It is an arithmetic number, because the mean of its divisors is an integer number (86197212).

Almost surely, 2^340000043 is an apocalyptic number.

340000043 is a deficient number, since it is larger than the sum of its proper divisors (4788805).

340000043 is an equidigital number, since it uses as much as digits as its factorization.

340000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788804.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 340000043 is about 18439.0900805869. The cubic root of 340000043 is about 697.9532341144.

It can be divided in two parts, 3400000 and 43, that added together give a palindrome (3400043).

The spelling of 340000043 in words is "three hundred forty million, forty-three", and thus it is an aban number.