43000012 has 18 divisors (see below), whose sum is σ = 82713764. Its totient is φ = 19545240.

The previous prime is 42999977. The next prime is 43000019. The reversal of 43000012 is 21000034.

It is not an unprimeable number, because it can be changed into a prime (43000019) 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, 43938 + ... + 44905.

Almost surely, 2^43000012 is an apocalyptic number.

It is an amenable number.

43000012 is a deficient number, since it is larger than the sum of its proper divisors (39713752).

43000012 is a wasteful number, since it uses less digits than its factorization.

43000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88869 (or 88856 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 43000012 is about 6557.4394392934. The cubic root of 43000012 is about 350.3398386284.

Adding to 43000012 its reverse (21000034), we get a palindrome (64000046).

The spelling of 43000012 in words is "forty-three million, twelve", and thus it is an aban number and an uban number.