43000043 has 8 divisors (see below), whose sum is σ = 44440176. Its totient is φ = 41580000.

The previous prime is 43000037. The next prime is 43000049. The reversal of 43000043 is 34000034.

It is an interprime number because it is at equal distance from previous prime (43000037) and next prime (43000049).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43000043 - 2¹⁴ = 42983659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42999991 and 43000027.

It is not an unprimeable number, because it can be changed into a prime (43000049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (5555022).

Almost surely, 2^43000043 is an apocalyptic number.

43000043 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

43000043 is a deficient number, since it is larger than the sum of its proper divisors (1440133).

43000043 is a wasteful number, since it uses less digits than its factorization.

43000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045.

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

The square root of 43000043 is about 6557.4418030204. The cubic root of 43000043 is about 350.3399228186.

Adding to 43000043 its reverse (34000034), we get a palindrome (77000077).

Subtracting from 43000043 its reverse (34000034), we obtain a palindrome (9000009).

It can be divided in two parts, 430000 and 43, that multiplied together give a square (18490000 = 4300²).

The spelling of 43000043 in words is "forty-three million, forty-three", and thus it is an aban number and an uban number.